refactor: remove dead stealth args, let binary handle GPU diversity

Remove --disable-blink-features=AutomationControlled (dead, binary handles navigator.webdriver at source level) and hardcoded GPU vendor/renderer flags. Binary auto-generates diverse GPU profiles from fingerprint seed. Improves fingerprint diversity -- previously every user shared the same GPU string. Bump to v0.3.21.
fix(docker): install geoip2 in Docker image
2026-06-23 11:41:46 +02:00 · 2026-04-07 07:16:22 +02:00 · 2026-04-07 06:37:14 +02:00 · 2026-04-07 05:14:01 +02:00 · 2026-04-07 05:11:44 +02:00 · 2026-04-06 02:38:26 +02:00
41 changed files with 4795 additions and 312 deletions
@@ -4,3 +4,7 @@ updates:
    directory: "/"
    schedule:
      interval: "weekly"
+    groups:
+      actions:
+        patterns:
+          - "*"
@@ -10,7 +10,7 @@ jobs:
  python:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
        with:
          python-version: "3.12"
@@ -22,7 +22,7 @@ jobs:
  javascript:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f  # v6.3.0
        with:
          node-version: 20
@@ -24,7 +24,7 @@ jobs:
  test:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
        with:
          python-version: "3.12"
@@ -42,7 +42,7 @@ jobs:
    if: startsWith(github.ref, 'refs/tags/')
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
        with:
          python-version: "3.12"
@@ -62,7 +62,7 @@ jobs:
    permissions:
      id-token: write  # OIDC trusted publishing — no PYPI_TOKEN needed
    steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
        with:
          python-version: "3.12"
@@ -80,13 +80,11 @@ jobs:
    permissions:
      id-token: write  # OIDC trusted publishing + provenance — no NPM_TOKEN needed
    steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f  # v6.3.0
        with:
          node-version: 22
          registry-url: 'https://registry.npmjs.org'
-      - name: Upgrade npm
-        run: npm install -g npm@latest
      - name: Build
        run: cd js && npm ci && npm run build
      - name: Publish to npm
@@ -102,14 +100,14 @@ jobs:
      attestations: write
      packages: write
    steps:
-      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5  # v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
      - name: Extract version
        run: |
          VERSION=$(python -c 'import re; print(re.search(r"__version__\s*=\s*[\"'\'']([^\"'\'']+)", open("cloakbrowser/_version.py").read()).group(1))')
          echo "VERSION=$VERSION" >> $GITHUB_ENV
-      - uses: docker/setup-qemu-action@c7c53464625b32c7a7e944ae62b3e17d2b600130  # v3
-      - uses: docker/setup-buildx-action@8d2750c68a42422c14e847fe6c8ac0403b4cbd6f  # v3
-      - uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9  # v3
+      - uses: docker/setup-qemu-action@ce360397dd3f832beb865e1373c09c0e9f86d70a  # v4.0.0
+      - uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd  # v4.0.0
+      - uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121  # v4.1.0
        with:
          username: ${{ secrets.DOCKER_USER }}
          password: ${{ secrets.DOCKER_PAT }}
@@ -65,3 +65,5 @@ deploy.sh
 .env
 debug
 publish-docker.sh
+captures
+20[0-9][0-9]-[0-9][0-9]-[0-9][0-9]-*.txt
@@ -6,6 +6,27 @@ Changes are tagged: **[wrapper]** for Python/JS wrapper, **[binary]** for Chromi

 ---

+## [0.3.21] — 2026-04-07
+
+- **[wrapper]** Remove dead `--disable-blink-features=AutomationControlled` flag -- binary patch 009 already handles `navigator.webdriver` at source level
+- **[wrapper]** Remove hardcoded GPU vendor/renderer flags -- binary auto-generates diverse, realistic GPU profiles from the fingerprint seed. Each seed gets a unique GPU instead of every user sharing the same one
+- **[wrapper]** Allow `viewport=None` to disable viewport emulation in both Python and JS wrappers (thanks [@kitiho](https://github.com/kitiho), #107)
+- **[wrapper]** Enable `geoip=True` in stealth test example to fix FingerprintJS detection
+- **[meta]** Remove npm self-upgrade step in CI -- Node 22 ships with compatible npm
+- **[docker]** Install `geoip2` in Docker image for GeoIP auto-detection support
+
+## [0.3.20] — 2026-04-06
+
+- **[binary]** Upgrade Linux x64 build to 145.0.7632.159.9 — 48 source-level C++ patches (up from 42)
+- **[binary]** 6 new patches: WebRTC IP spoofing, proxy signal removal, network timing normalization, WebGL accuracy improvements
+- **[binary]** New `--fingerprint-webrtc-ip` flag — spoof WebRTC ICE candidate IPs to match your proxy exit IP
+- **[binary]** Proxy detection signals eliminated — timing, headers, and network metadata normalized when proxy is active
+- **[binary]** WebGL rendering accuracy improvements for headed mode
+- **[wrapper]** Auto-inject `--fingerprint-webrtc-ip` when `geoip=True` — uses resolved exit IP from GeoIP lookup
+- **[wrapper]** Rewrite `cloakserve` as CDP multiplexer with per-connection fingerprint seeds and connection tracking
+- **[wrapper]** Humanize keyboard improvements — better behavioral stealth for typing interactions (thanks [@evelaa123](https://github.com/evelaa123))
+- **[meta]** Bump GitHub Actions dependencies
+
 ## [0.3.19] — 2026-03-30

 - **[binary]** Upgrade Linux x64 build to 145.0.7632.159.8 — 42 source-level C++ patches (up from 33)
@@ -20,7 +20,7 @@ WORKDIR /app
 # Python wrapper
 COPY pyproject.toml README.md LICENSE BINARY-LICENSE.md CHANGELOG.md ./
 COPY cloakbrowser/ cloakbrowser/
-RUN pip install --no-cache-dir .
+RUN pip install --no-cache-dir ".[serve,geoip]"

 # JS wrapper
 COPY js/ js/
@@ -40,7 +40,7 @@ Drop-in Playwright/Puppeteer replacement for Python and JavaScript.<br>
 Same API, same code — just swap the import. <strong>3 lines of code, 30 seconds to unblock.</strong>
 </p>

- **33 source-level C++ patches** — canvas, WebGL, audio, fonts, GPU, screen, automation signals, CDP input behavior
+- **48 source-level C++ patches** — canvas, WebGL, audio, fonts, GPU, screen, WebRTC, network timing, automation signals, CDP input behavior
 - **`humanize=True`** — human-like mouse curves, keyboard timing, and scroll patterns. One flag, behavioral detection passes
 - **0.9 reCAPTCHA v3 score** — human-level, server-verified
 - **Passes Cloudflare Turnstile**, FingerprintJS, BrowserScan — tested against 30+ detection sites
@@ -128,13 +128,14 @@ Open [http://localhost:8080](http://localhost:8080). Create a profile. Click **L

 ---

-## Latest: v0.3.17 (Chromium 145.0.7632.159.7)
+## Latest: v0.3.20 (Chromium 145.0.7632.159.9)

- **`humanize=True`** — one flag makes all mouse, keyboard, and scroll interactions behave like a real user. Bézier curves, per-character typing, realistic scroll patterns. Two presets: `default` and `careful`
- **CDP input behavior mimicking** — input events sent via CDP now produce the same signals as real user interactions. 5 new source-level patches covering pointer, keyboard, and mouse behavior
- **Native locale spoofing** — new C++ patch replaces detectable CDP-level locale emulation
- **WebGPU fingerprint hardening** — adapter features, limits, and device ID spoofed for cross-API consistency
- **33 fingerprint patches** (Linux x64) — all 4 platforms on Chromium 145
+- **48 fingerprint patches** (Linux x64) — 6 new patches covering WebRTC IP spoofing, proxy signal removal, and network timing normalization
+- **WebRTC IP spoofing** — `--fingerprint-webrtc-ip=auto` resolves your proxy's exit IP and spoofs WebRTC ICE candidates. Auto-injected when using `geoip=True` (no extra network call)
+- **Proxy signal removal** — DNS/connect/SSL timing zeroed, proxy cache headers stripped, Proxy-Connection header leak removed
+- **`cloakserve` CDP multiplexer** — rewritten as a multi-connection CDP proxy with per-connection fingerprint seeds
+- **Humanize CDP isolation** — keyboard events now use isolated worlds and trusted dispatch for better behavioral stealth
+- **`humanize=True`** — one flag makes all mouse, keyboard, and scroll interactions behave like a real user. Bézier curves, per-character typing, realistic scroll patterns
 - **Stealthy with zero flags** — binary auto-generates a random fingerprint seed at startup. No configuration required
 - **Timezone & locale from proxy IP** — `launch(proxy="...", geoip=True)` auto-detects timezone and locale
 - **Persistent profiles** — `launch_persistent_context()` keeps cookies and localStorage across sessions, bypasses incognito detection
@@ -221,7 +222,7 @@ CloakBrowser is a thin wrapper (Python + JavaScript) around a custom-built Chrom
 3. **Every launch** → Playwright or Puppeteer starts with our binary + stealth args
 4. **You write code** → standard Playwright/Puppeteer API, nothing new to learn

-The binary includes 33 source-level patches covering canvas, WebGL, audio, fonts, GPU, screen properties, hardware reporting, automation signal removal, and CDP input behavior mimicking.
+The binary includes 48 source-level patches covering canvas, WebGL, audio, fonts, GPU, screen properties, WebRTC, network timing, hardware reporting, automation signal removal, and CDP input behavior mimicking.

 These are compiled into the Chromium binary — not injected via JavaScript, not set via flags.

@@ -253,11 +254,19 @@ browser = launch(args=["--disable-gpu"])
 browser = launch(timezone="America/New_York", locale="en-US")

 # Auto-detect timezone/locale from proxy IP (requires: pip install cloakbrowser[geoip])
+# Also auto-injects --fingerprint-webrtc-ip to prevent WebRTC IP leaks (no extra cost)
+# Note: makes HTTP calls through your proxy to resolve exit IP (ipify.org, checkip.amazonaws.com)
 browser = launch(proxy="http://proxy:8080", geoip=True)

 # Explicit timezone/locale always win over auto-detection
 browser = launch(proxy="http://proxy:8080", geoip=True, timezone="Europe/London")

+# WebRTC IP spoofing only (no geoip dep needed — resolves exit IP via HTTP call through proxy)
+browser = launch(proxy="http://proxy:8080", args=["--fingerprint-webrtc-ip=auto"])
+
+# Explicit WebRTC IP (no network call)
+browser = launch(proxy="http://proxy:8080", args=["--fingerprint-webrtc-ip=1.2.3.4"])
+
 # Human-like mouse, keyboard, and scroll behavior
 browser = launch(humanize=True)

@@ -545,14 +554,10 @@ Every `launch()` call sets these automatically. The **wrapper** applies platform
 |------|--------------|---------------|----------|
 | `--fingerprint` | Random (10000–99999) | Random (10000–99999) | Master seed for canvas, WebGL, audio, fonts, client rects |
 | `--fingerprint-platform` | `windows` | `macos` | `navigator.platform`, User-Agent OS, GPU pool selection |
-| `--fingerprint-gpu-vendor` | `NVIDIA Corporation` | `Google Inc. (Apple)` | WebGL `UNMASKED_VENDOR_WEBGL` |
-| `--fingerprint-gpu-renderer` | `NVIDIA GeForce RTX 3070` | `ANGLE (Apple, ANGLE Metal Renderer: Apple M3, Unspecified Version)` | WebGL `UNMASKED_RENDERER_WEBGL` |

-The binary auto-generates hardware concurrency (8), device memory (8), and screen dimensions (1920x1080 on Windows/Linux, 1440x900 on macOS) from the seed. Override with explicit flags if needed.
+The binary auto-generates everything else from the seed: GPU, hardware concurrency, device memory, and screen dimensions. Each seed produces a unique, consistent fingerprint. Override with explicit flags if needed.

-> **Using the binary directly?** It works out of the box with zero flags — the binary auto-spoofs everything. Pass `--fingerprint=seed` for a persistent identity, or use explicit flags like `--fingerprint-gpu-renderer` to override any auto-generated value.
-
-> **Production tip:** For better stealth at scale, pass your own GPU, screen, and hardware values instead of relying on defaults. Custom parameters make your sessions harder to cluster by anti-bot systems that look for uniform fingerprint profiles.
+> **Using the binary directly?** It works out of the box with zero flags -- the binary auto-spoofs everything. Pass `--fingerprint=seed` for a persistent identity, or use explicit flags like `--fingerprint-gpu-renderer` to override any auto-generated value.

 ### Additional Flags

@@ -560,6 +565,8 @@ Supported by the binary but **not set by default** — pass via `args` to custom

 | Flag | Controls |
 |------|----------|
+| `--fingerprint-gpu-vendor` | WebGL `UNMASKED_VENDOR_WEBGL` (auto-generated from seed + platform) |
+| `--fingerprint-gpu-renderer` | WebGL `UNMASKED_RENDERER_WEBGL` (auto-generated from seed + platform) |
 | `--fingerprint-hardware-concurrency` | `navigator.hardwareConcurrency` (auto-generated: `8`) |
 | `--fingerprint-device-memory` | `navigator.deviceMemory` in GB (auto-generated: `8`) |
 | `--fingerprint-screen-width` | Screen width (auto-generated: `1920` Win/Linux, `1440` macOS) |
@@ -573,6 +580,8 @@ Supported by the binary but **not set by default** — pass via `args` to custom
 | `--fingerprint-storage-quota` | Override storage quota in MB — affects `storage.estimate()`, `storageBuckets`, and legacy webkit APIs. Auto-normalized when `--fingerprint` is set |
 | `--fingerprint-taskbar-height` | Override taskbar height (binary defaults: Win=48, Mac=95, Linux=0) |
 | `--fingerprint-fonts-dir` | Path to cross-platform font directory |
+| `--fingerprint-webrtc-ip` | WebRTC ICE candidate IP replacement. Use `auto` to resolve from proxy exit IP (makes an HTTP call through the proxy), or pass an explicit IP. Auto-injected when `geoip=True` |
+| `--fingerprint-noise=false` | Disable noise injection (canvas, WebGL, audio, client rects) while keeping the deterministic fingerprint seed active |
 | `--enable-blink-features=FakeShadowRoot` | Access closed shadow DOM elements |

 > **Note:** All stealth tests were verified with the default fingerprint config above. Changing these flags may affect detection results — test your configuration before using in production.
@@ -587,11 +596,9 @@ browser = launch(args=["--fingerprint=42069"])
 browser = launch(stealth_args=False, args=[
    "--fingerprint=42069",
    "--fingerprint-platform=windows",
-    "--fingerprint-gpu-vendor=NVIDIA Corporation",
-    "--fingerprint-gpu-renderer=NVIDIA GeForce RTX 3070",
 ])

-# Override GPU to look like a different machine
+# Override GPU to look like a specific machine
 browser = launch(args=[
    "--fingerprint-gpu-vendor=Intel Inc.",
    "--fingerprint-gpu-renderer=Intel Iris OpenGL Engine",
@@ -645,11 +652,11 @@ browser = await launch_async(args=["--remote-debugging-port=9242"])

 | Platform | Chromium | Patches | Status |
 |---|---|---|---|
-| Linux x86_64 | 145 | 33 | ✅ Latest |
-| Linux arm64 (RPi, Graviton) | 145 | 33 | ✅ Latest |
-| macOS arm64 (Apple Silicon) | 145 | 26 | ✅ Latest |
-| macOS x86_64 (Intel) | 145 | 26 | ✅ Latest |
-| Windows x86_64 | 145 | 33 | ✅ Latest |
+| Linux x86_64 | 145 | 48 | ✅ Latest |
+| Linux arm64 (RPi, Graviton) | 145 | 48 | ✅ |
+| macOS arm64 (Apple Silicon) | 145 | 26 | ✅ |
+| macOS x86_64 (Intel) | 145 | 26 | ✅ |
+| Windows x86_64 | 145 | 48 | ✅ |

 The wrapper auto-downloads the correct binary for your platform.

@@ -753,7 +760,28 @@ services:
      start_period: 10s
 ```

-Run multiple instances with different fingerprint seeds on different ports — each gets unique canvas noise, client rects, and other browser signals. Pass `--fingerprint=<seed>` in the command (e.g., `cloakserve --fingerprint=12345`).
+**Per-connection fingerprint seeds** — run multiple browser identities from a single container. Each unique seed spawns a separate Chrome process with its own fingerprint:
+
+```python
+# Each seed gets unique canvas noise, client rects, and other browser signals
+b1 = pw.chromium.connect_over_cdp("http://localhost:9222?fingerprint=11111")
+b2 = pw.chromium.connect_over_cdp("http://localhost:9222?fingerprint=22222")
+
+# Full identity control via query params
+b3 = pw.chromium.connect_over_cdp(
+    "http://localhost:9222?fingerprint=33333"
+    "&timezone=Asia/Tokyo&locale=ja-JP&platform=macos"
+    "&hardware-concurrency=4&device-memory=8"
+)
+
+# Auto-detect timezone/locale from proxy exit IP
+b4 = pw.chromium.connect_over_cdp(
+    "http://localhost:9222?fingerprint=44444"
+    "&proxy=http://proxy:8080&geoip=true"
+)
+```
+
+Supported query params: `fingerprint`, `timezone`, `locale`, `platform`, `platform-version`, `brand`, `brand-version`, `gpu-vendor`, `gpu-renderer`, `hardware-concurrency`, `device-memory`, `screen-width`, `screen-height`, `proxy`, `geoip`. Same seed reuses the same process (first connection's params win). No seed = shared default process (backward compatible). Check active processes at `GET /` (returns JSON with PIDs, ports, and connection counts).

 **Persistent profiles** — mount a volume to keep cookies and sessions across container restarts:

@@ -987,9 +1015,9 @@ A: Yes. Pass `proxy="http://user:pass@host:port"` to `launch()`.

 | Feature | Status |
 |---------|--------|
-| Linux x64 — Chromium 145 (26 patches) | ✅ Released |
+| Linux x64 — Chromium 145 (48 patches) | ✅ Released |
 | macOS arm64/x64 — Chromium 145 (26 patches) | ✅ Released |
-| Windows x64 — Chromium 145 (26 patches) | ✅ Released |
+| Windows x64 — Chromium 145 (33 patches) | ✅ Released |
 | JavaScript/Puppeteer + Playwright support | ✅ Released |
 | Fingerprint rotation per session | ✅ Released |
 | Built-in proxy rotation | 📋 Planned |
@@ -1011,7 +1039,7 @@ All releases are signed for supply chain verification.
 ```bash
 # Verify GPG signature (binary release tag)
 gpg --keyserver keyserver.ubuntu.com --recv-keys C60C0DDC9D0DE2DD
-git verify-tag chromium-v145.0.7632.159.7
+git verify-tag chromium-v145.0.7632.159.9

 # Verify GitHub binary attestation (Sigstore)
 gh attestation verify cloakbrowser-linux-x64.tar.gz --repo CloakHQ/cloakbrowser
@@ -1036,3 +1064,4 @@ Issues and PRs welcome. If something isn't working, [open an issue](https://gith

 - [@evelaa123](https://github.com/evelaa123) — humanize behavior, persistent contexts, Windows fix
 - [@yahooguntu](https://github.com/yahooguntu) — persistent contexts
+- [@kitiho](https://github.com/kitiho) — null viewport fix
@@ -1,31 +1,54 @@
 #!/usr/bin/env python3
-"""Launch stealth Chromium as a CDP server for remote connections.
+"""CDP multiplexer — per-connection fingerprint seeds for stealth Chromium.
+
+Spawns a separate Chrome process per unique fingerprint seed, routing CDP
+connections through a single port. Each seed gets its own browser identity.

 Usage:
-    cloakserve                          # headless on port 9222
-    cloakserve --headless=false         # headed (uses Xvfb in Docker)
-    cloakserve --proxy-server=host:port # with proxy
+    cloakserve                                      # default, backward compat
+    cloakserve --port=9222                           # custom port

-Connect from host:
-    playwright.chromium.connect_over_cdp("http://localhost:9222")
+Client:
+    browser = pw.chromium.connect_over_cdp("http://host:9222?fingerprint=12345")
+    browser = pw.chromium.connect_over_cdp(
+        "http://host:9222?fingerprint=12345&timezone=America/New_York&locale=en-US"
+    )
 """
-import signal
+
+from __future__ import annotations
+
+import asyncio
+import json
+import logging
+import os
+import random
+import shutil
+import socket
 import subprocess
 import sys
 import time
+from dataclasses import dataclass
+from urllib.parse import parse_qs

-from cloakbrowser.config import get_default_stealth_args
+from pathlib import Path
+
+import aiohttp
+import websockets
+from aiohttp import web
+
+from cloakbrowser.browser import build_args, maybe_resolve_geoip, _resolve_webrtc_args
 from cloakbrowser.download import ensure_binary

-PORT = 9222
+logging.basicConfig(
+    level=logging.INFO,
+    format="%(asctime)s %(levelname)s %(message)s",
+    datefmt="%H:%M:%S",
+)
+logger = logging.getLogger("cloakserve")

-binary = ensure_binary()
-
-chrome_args = [
-    binary,
-    f"--remote-debugging-port={PORT}",
-    "--remote-debugging-address=0.0.0.0",
-    # Sane defaults for running Chrome directly (outside Playwright)
+# Args for running Chrome directly (outside Playwright).
+# Playwright normally adds its own version of these.
+BASE_CHROME_ARGS = [
    "--no-first-run",
    "--no-default-browser-check",
    "--disable-dev-shm-usage",
@@ -33,24 +56,581 @@ chrome_args = [
    "--disable-popup-blocking",
    "--disable-background-networking",
    "--metrics-recording-only",
-    # GPU blocklist bypass: Chromium blocks WebGL on software GPUs in
-    # Docker/Xvfb. Without this, WebGL vendor/renderer spoofing fails. #58
    "--ignore-gpu-blocklist",
-] + get_default_stealth_args() + sys.argv[1:]
+]

-chrome = subprocess.Popen(chrome_args)
-
-time.sleep(2)
-
-print(f"CloakBrowser CDP server ready on port {PORT}", flush=True)
+BASE_CDP_PORT = 5100


-def cleanup(sig, frame):
-    chrome.terminate()
-    sys.exit(0)
+# ---------------------------------------------------------------------------
+# ChromeProcess — one running Chrome instance
+# ---------------------------------------------------------------------------
+
+@dataclass
+class ChromeProcess:
+    seed: str
+    process: subprocess.Popen
+    cdp_port: int
+    user_data_dir: str
+    timezone: str | None = None
+    locale: str | None = None
+    proxy: str | None = None


-signal.signal(signal.SIGTERM, cleanup)
-signal.signal(signal.SIGINT, cleanup)
+# ---------------------------------------------------------------------------
+# ChromePool — manages multiple Chrome processes keyed by seed
+# ---------------------------------------------------------------------------

-chrome.wait()
+class ChromePool:
+    def __init__(
+        self,
+        binary: str,
+        global_args: list[str],
+        headless: bool,
+        data_dir: str = "/tmp/cloakserve",
+    ):
+        self._binary = binary
+        self._global_args = global_args
+        self._headless = headless
+        self._data_dir = data_dir
+        self._processes: dict[str, ChromeProcess] = {}
+        self._default: ChromeProcess | None = None
+        self._locks: dict[str, asyncio.Lock] = {}
+        self._next_port = BASE_CDP_PORT
+        # Connection refcounting for status reporting
+        self._connections: dict[str, int] = {}
+
+    def _get_lock(self, seed: str) -> asyncio.Lock:
+        if seed not in self._locks:
+            self._locks[seed] = asyncio.Lock()
+        return self._locks[seed]
+
+    def _allocate_port(self) -> int:
+        """Find a free port starting from _next_port."""
+        for _ in range(100):
+            port = self._next_port
+            self._next_port += 1
+            try:
+                with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+                    s.bind(("127.0.0.1", port))
+                return port
+            except OSError:
+                continue
+        raise RuntimeError("No free ports available for Chrome CDP")
+
+    def connect(self, seed_key: str) -> None:
+        """Increment connection refcount for a seed."""
+        self._connections[seed_key] = self._connections.get(seed_key, 0) + 1
+
+    def disconnect(self, seed_key: str) -> None:
+        """Decrement connection refcount for a seed."""
+        count = self._connections.get(seed_key, 0) - 1
+        if count <= 0:
+            self._connections.pop(seed_key, None)
+        else:
+            self._connections[seed_key] = count
+
+    async def get_or_launch(
+        self,
+        seed: str | None,
+        extra_args: list[str] | None = None,
+        timezone: str | None = None,
+        locale: str | None = None,
+        proxy: str | None = None,
+        geoip: bool = False,
+    ) -> ChromeProcess:
+        """Get existing or launch new Chrome process for a seed."""
+        # No seed = default shared process
+        if seed is None:
+            seed_key = "__default__"
+            actual_seed = str(random.randint(10000, 99999))
+        else:
+            seed_key = seed
+            actual_seed = seed
+
+        lock = self._get_lock(seed_key)
+        async with lock:
+            # Check if already running (including default fast-path)
+            if seed_key in self._processes:
+                proc = self._processes[seed_key]
+                if proc.process.poll() is None:
+                    if any([extra_args, timezone, locale, proxy, geoip]):
+                        logger.warning(
+                            "Seed %s already running (port %d, tz=%s, locale=%s, proxy=%s) — "
+                            "ignoring new params (first-launch wins)",
+                            seed_key, proc.cdp_port,
+                            proc.timezone, proc.locale, proc.proxy,
+                        )
+                    return proc
+                # Dead — clean up
+                await self._cleanup_process(seed_key)
+
+            # Resolve geoip if requested
+            exit_ip = None
+            if geoip and proxy:
+                timezone, locale, exit_ip = maybe_resolve_geoip(True, proxy, timezone, locale)
+
+            # Build Chrome args via shared logic
+            fp_extra = [f"--fingerprint={actual_seed}"]
+            if extra_args:
+                fp_extra.extend(extra_args)
+            if proxy:
+                fp_extra.append(f"--proxy-server={proxy}")
+
+            # WebRTC IP spoofing: resolve auto, inject geoip exit IP
+            fp_extra = _resolve_webrtc_args(fp_extra, proxy)
+            if exit_ip and not any(a.startswith("--fingerprint-webrtc-ip") for a in (fp_extra or [])):
+                fp_extra = list(fp_extra or [])
+                fp_extra.append(f"--fingerprint-webrtc-ip={exit_ip}")
+
+            chrome_args = build_args(
+                stealth_args=True,
+                extra_args=fp_extra,
+                timezone=timezone,
+                locale=locale,
+                headless=self._headless,
+            )
+
+            # Allocate port and user data dir
+            port = self._allocate_port()
+            user_data_dir = os.path.join(self._data_dir, seed_key)
+            os.makedirs(user_data_dir, exist_ok=True)
+
+            full_args = (
+                [self._binary]
+                + BASE_CHROME_ARGS
+                + chrome_args
+                + self._global_args
+                + [
+                    f"--remote-debugging-port={port}",
+                    "--remote-debugging-address=127.0.0.1",
+                    f"--user-data-dir={user_data_dir}",
+                ]
+            )
+
+            logger.info("Launching Chrome (seed=%s, port=%d)", actual_seed, port)
+            process = subprocess.Popen(
+                full_args,
+                stdout=subprocess.DEVNULL,
+            )
+
+            # Wait for CDP to be ready
+            if not await self._wait_for_cdp(port):
+                process.kill()
+                await asyncio.to_thread(process.wait, timeout=5)
+                await asyncio.to_thread(shutil.rmtree, user_data_dir, True)
+                raise web.HTTPBadGateway(
+                    text=json.dumps({"error": "Chrome failed to start"}),
+                    content_type="application/json",
+                )
+
+            cp = ChromeProcess(
+                seed=actual_seed,
+                process=process,
+                cdp_port=port,
+                user_data_dir=user_data_dir,
+                timezone=timezone,
+                locale=locale,
+                proxy=proxy,
+            )
+            self._processes[seed_key] = cp
+
+            if seed is None:
+                self._default = cp
+
+            logger.info("Chrome ready (seed=%s, port=%d, pid=%d)", actual_seed, port, process.pid)
+            return cp
+
+    async def _cleanup_process(self, key: str) -> None:
+        """Terminate a Chrome process and clean up."""
+        proc = self._processes.pop(key, None)
+        if not proc:
+            return
+        if proc.process.poll() is None:
+            proc.process.terminate()
+            try:
+                await asyncio.to_thread(proc.process.wait, timeout=5)
+            except subprocess.TimeoutExpired:
+                proc.process.kill()
+        # Clean up user data dir (can be slow for large profiles)
+        await asyncio.to_thread(shutil.rmtree, proc.user_data_dir, True)
+        if self._default is proc:
+            self._default = None
+        self._locks.pop(key, None)
+        self._connections.pop(key, None)
+
+    async def shutdown(self) -> None:
+        """Terminate all Chrome processes."""
+        for key in list(self._processes.keys()):
+            await self._cleanup_process(key)
+        logger.info("All Chrome processes terminated")
+
+    @staticmethod
+    async def _wait_for_cdp(port: int, timeout: float = 10.0) -> bool:
+        """Poll Chrome's /json/version until ready."""
+        deadline = time.monotonic() + timeout
+        delay = 0.1
+        session = aiohttp.ClientSession(
+            timeout=aiohttp.ClientTimeout(total=1)
+        )
+        try:
+            while time.monotonic() < deadline:
+                try:
+                    async with session.get(
+                        f"http://127.0.0.1:{port}/json/version"
+                    ) as resp:
+                        if resp.status == 200:
+                            return True
+                except Exception:
+                    pass
+                await asyncio.sleep(delay)
+                delay = min(delay * 2, 1.0)
+            return False
+        finally:
+            await session.close()
+
+
+# ---------------------------------------------------------------------------
+# Query param parsing
+# ---------------------------------------------------------------------------
+
+# Params that need special handling (not simple --fingerprint-{name}= mapping)
+SPECIAL_PARAMS = {"fingerprint", "proxy", "geoip", "locale", "timezone"}
+
+
+def parse_connection_params(query_string: str) -> dict:
+    """Parse query params into connection config."""
+    qs = parse_qs(query_string, keep_blank_values=False)
+
+    result: dict = {
+        "seed": None,
+        "timezone": None,
+        "locale": None,
+        "proxy": None,
+        "geoip": False,
+        "extra_args": [],
+    }
+
+    for key, values in qs.items():
+        val = values[0]
+        if key == "fingerprint":
+            result["seed"] = val
+        elif key == "timezone":
+            result["timezone"] = val
+        elif key == "locale":
+            result["locale"] = val
+        elif key == "proxy":
+            result["proxy"] = val
+        elif key == "geoip":
+            result["geoip"] = val.lower() in ("true", "1", "yes")
+        elif key not in SPECIAL_PARAMS:
+            # Generic fingerprint param: map to --fingerprint-{key}={val}
+            result["extra_args"].append(f"--fingerprint-{key}={val}")
+
+    return result
+
+
+# ---------------------------------------------------------------------------
+# HTTP handlers
+# ---------------------------------------------------------------------------
+
+def _ws_scheme(request: web.Request) -> str:
+    """Return 'wss' if client connected via HTTPS (e.g. TLS-terminating proxy), else 'ws'."""
+    proto = request.headers.get("X-Forwarded-Proto", request.scheme)
+    return "wss" if proto == "https" else "ws"
+
+
+async def handle_root(request: web.Request) -> web.Response:
+    """Health check / process status."""
+    pool: ChromePool = request.app["pool"]
+    processes = {}
+    for key, proc in pool._processes.items():
+        if proc.process.poll() is None:
+            processes[key] = {
+                "pid": proc.process.pid,
+                "port": proc.cdp_port,
+                "seed": proc.seed,
+                "connections": pool._connections.get(key, 0),
+                "timezone": proc.timezone,
+                "locale": proc.locale,
+                "proxy": proc.proxy,
+            }
+    return web.json_response({
+        "status": "ok",
+        "active": len(processes),
+        "processes": processes,
+    })
+
+
+async def handle_json_version(request: web.Request) -> web.Response:
+    """Proxy /json/version with optional per-seed routing."""
+    pool: ChromePool = request.app["pool"]
+    params = parse_connection_params(request.query_string)
+
+    cp = await pool.get_or_launch(
+        seed=params["seed"],
+        extra_args=params["extra_args"] or None,
+        timezone=params["timezone"],
+        locale=params["locale"],
+        proxy=params["proxy"],
+        geoip=params["geoip"],
+    )
+
+    try:
+        async with aiohttp.ClientSession() as session:
+            async with session.get(
+                f"http://127.0.0.1:{cp.cdp_port}/json/version",
+                timeout=aiohttp.ClientTimeout(total=5),
+            ) as resp:
+                data = await resp.json()
+    except Exception as exc:
+        logger.error("Failed to reach Chrome CDP (port %d): %s", cp.cdp_port, exc)
+        return web.json_response({"error": "CDP endpoint unreachable"}, status=502)
+
+    # Rewrite webSocketDebuggerUrl to route through our multiplexer
+    host = request.headers.get("Host", f"localhost:{request.app['port']}")
+    seed_key = params["seed"]
+    if seed_key:
+        ws_path = f"fingerprint/{seed_key}/devtools/browser"
+    else:
+        ws_path = "devtools/browser"
+
+    # Extract the browser GUID from Chrome's original URL
+    orig_ws = data.get("webSocketDebuggerUrl", "")
+    guid = orig_ws.rsplit("/", 1)[-1] if "/devtools/" in orig_ws else ""
+
+    scheme = _ws_scheme(request)
+    data["webSocketDebuggerUrl"] = f"{scheme}://{host}/{ws_path}/{guid}"
+    return web.json_response(data)
+
+
+async def handle_json_list(request: web.Request) -> web.Response:
+    """Proxy /json/list with per-seed routing. Rewrites all entries."""
+    pool: ChromePool = request.app["pool"]
+    params = parse_connection_params(request.query_string)
+
+    cp = await pool.get_or_launch(
+        seed=params["seed"],
+        extra_args=params["extra_args"] or None,
+        timezone=params["timezone"],
+        locale=params["locale"],
+        proxy=params["proxy"],
+        geoip=params["geoip"],
+    )
+
+    try:
+        async with aiohttp.ClientSession() as session:
+            async with session.get(
+                f"http://127.0.0.1:{cp.cdp_port}/json/list",
+                timeout=aiohttp.ClientTimeout(total=5),
+            ) as resp:
+                data = await resp.json()
+    except Exception as exc:
+        logger.error("Failed to reach Chrome CDP (port %d): %s", cp.cdp_port, exc)
+        return web.json_response({"error": "CDP endpoint unreachable"}, status=502)
+
+    host = request.headers.get("Host", f"localhost:{request.app['port']}")
+    scheme = _ws_scheme(request)
+    seed_key = params["seed"]
+
+    for entry in data:
+        if "webSocketDebuggerUrl" in entry:
+            ws_tail = entry["webSocketDebuggerUrl"].split("/devtools/")[-1]
+            if seed_key:
+                entry["webSocketDebuggerUrl"] = (
+                    f"{scheme}://{host}/fingerprint/{seed_key}/devtools/{ws_tail}"
+                )
+            else:
+                entry["webSocketDebuggerUrl"] = f"{scheme}://{host}/devtools/{ws_tail}"
+
+    return web.json_response(data)
+
+
+# ---------------------------------------------------------------------------
+# WebSocket proxy
+# ---------------------------------------------------------------------------
+
+async def proxy_cdp_websocket(
+    client_ws: web.WebSocketResponse,
+    target_url: str,
+    label: str,
+) -> None:
+    """Bidirectional WebSocket proxy between client and Chrome CDP."""
+    try:
+        async with websockets.connect(
+            target_url, max_size=None, ping_interval=None, ping_timeout=None,
+        ) as cdp_ws:
+            logger.info("%s: connected to %s", label, target_url)
+
+            async def client_to_cdp():
+                try:
+                    async for msg in client_ws:
+                        if msg.type == aiohttp.WSMsgType.TEXT:
+                            await cdp_ws.send(msg.data)
+                        elif msg.type == aiohttp.WSMsgType.BINARY:
+                            await cdp_ws.send(msg.data)
+                        elif msg.type in (aiohttp.WSMsgType.CLOSE, aiohttp.WSMsgType.CLOSING, aiohttp.WSMsgType.CLOSED):
+                            break
+                except Exception as exc:
+                    logger.debug("%s [c->cdp]: %s", label, exc)
+
+            async def cdp_to_client():
+                try:
+                    async for msg in cdp_ws:
+                        if isinstance(msg, str):
+                            await client_ws.send_str(msg)
+                        else:
+                            await client_ws.send_bytes(msg)
+                except Exception as exc:
+                    logger.debug("%s [cdp->c]: %s", label, exc)
+
+            c2d = asyncio.create_task(client_to_cdp(), name="c2d")
+            d2c = asyncio.create_task(cdp_to_client(), name="d2c")
+            done, pending = await asyncio.wait(
+                [c2d, d2c], return_when=asyncio.FIRST_COMPLETED,
+            )
+            for task in pending:
+                task.cancel()
+            logger.info("%s: disconnected", label)
+
+    except Exception as exc:
+        logger.error("%s error: %s", label, exc)
+
+
+async def handle_ws_default(request: web.Request) -> web.WebSocketResponse:
+    """WebSocket proxy for default (no-seed) Chrome: /devtools/{type}/{guid}"""
+    pool: ChromePool = request.app["pool"]
+    path = request.match_info.get("path", "")
+
+    cp = await pool.get_or_launch(seed=None)
+
+    ws = web.WebSocketResponse()
+    await ws.prepare(request)
+
+    pool.connect("__default__")
+    try:
+        target_url = f"ws://127.0.0.1:{cp.cdp_port}/devtools/{path}"
+        await proxy_cdp_websocket(ws, target_url, f"CDP default [{path}]")
+    finally:
+        pool.disconnect("__default__")
+    return ws
+
+
+async def handle_ws_seed(request: web.Request) -> web.WebSocketResponse:
+    """WebSocket proxy for seed-specific Chrome: /fingerprint/{seed}/devtools/{type}/{guid}"""
+    pool: ChromePool = request.app["pool"]
+    seed = request.match_info["seed"]
+    path = request.match_info.get("path", "")
+
+    cp = await pool.get_or_launch(seed=seed)
+
+    ws = web.WebSocketResponse()
+    await ws.prepare(request)
+
+    pool.connect(seed)
+    try:
+        target_url = f"ws://127.0.0.1:{cp.cdp_port}/devtools/{path}"
+        await proxy_cdp_websocket(ws, target_url, f"CDP seed={seed} [{path}]")
+    finally:
+        pool.disconnect(seed)
+    return ws
+
+
+async def on_shutdown(app: web.Application) -> None:
+    await app["pool"].shutdown()
+
+
+# ---------------------------------------------------------------------------
+# CLI arg parsing
+# ---------------------------------------------------------------------------
+
+def _default_data_dir() -> str:
+    """Smart default: Docker → /tmp/cloakserve, bare metal → ~/.cloakbrowser/cloakserve."""
+    if os.path.exists("/.dockerenv"):
+        return "/tmp/cloakserve"
+    return str(Path.home() / ".cloakbrowser" / "cloakserve")
+
+
+def parse_cli_args(argv: list[str]) -> tuple[dict, list[str]]:
+    """Parse cloakserve-specific args, return (config, passthrough_args)."""
+    config: dict = {
+        "port": 9222,
+        "headless": True,
+        "data_dir": None,
+    }
+    passthrough = []
+    # Flags consumed by cloakserve (not passed to Chrome)
+    consumed_prefixes = (
+        "--port=",
+        "--data-dir=",
+        "--remote-debugging-port=",
+        "--remote-debugging-address=",
+    )
+
+    for arg in argv:
+        if arg.startswith("--port="):
+            config["port"] = int(arg.split("=", 1)[1])
+        elif arg.startswith("--data-dir="):
+            config["data_dir"] = arg.split("=", 1)[1]
+        elif arg == "--headless=false" or arg == "--headless=False":
+            config["headless"] = False
+            passthrough.append(arg)
+        elif arg.startswith(consumed_prefixes):
+            pass  # Strip these silently
+        else:
+            passthrough.append(arg)
+
+    if config["data_dir"] is None:
+        config["data_dir"] = _default_data_dir()
+
+    return config, passthrough
+
+
+# ---------------------------------------------------------------------------
+# Main
+# ---------------------------------------------------------------------------
+
+def main() -> None:
+    binary = ensure_binary()
+    config, global_args = parse_cli_args(sys.argv[1:])
+
+    pool = ChromePool(
+        binary=binary,
+        global_args=global_args,
+        headless=config["headless"],
+        data_dir=config["data_dir"],
+    )
+
+    app = web.Application()
+    app["pool"] = pool
+    app["port"] = config["port"]
+
+    # Routes
+    app.router.add_get("/", handle_root)
+    app.router.add_get("/json/version", handle_json_version)
+    app.router.add_get("/json/version/", handle_json_version)
+    app.router.add_get("/json/list", handle_json_list)
+    app.router.add_get("/json/list/", handle_json_list)
+    app.router.add_get("/json", handle_json_list)
+    app.router.add_get("/json/", handle_json_list)
+
+    # WebSocket routes — seed-specific (must be before default to match first)
+    app.router.add_get("/fingerprint/{seed}/devtools/{path:.+}", handle_ws_seed)
+    # WebSocket routes — default (no seed)
+    app.router.add_get("/devtools/{path:.+}", handle_ws_default)
+
+    app.on_shutdown.append(on_shutdown)
+
+    port = config["port"]
+    logger.info("CloakBrowser CDP multiplexer starting on port %d", port)
+    logger.info(
+        "Connect: playwright.chromium.connect_over_cdp("
+        "\"http://localhost:%d?fingerprint=<seed>\")",
+        port,
+    )
+
+    web.run_app(app, host="0.0.0.0", port=port, print=None)
+
+
+if __name__ == "__main__":
+    main()
@@ -11,7 +11,7 @@ Usage:
    browser.close()
 """

-from .browser import launch, launch_async, launch_context, launch_persistent_context, launch_persistent_context_async, ProxySettings
+from .browser import launch, launch_async, launch_context, launch_persistent_context, launch_persistent_context_async, ProxySettings, build_args, maybe_resolve_geoip
 from .config import CHROMIUM_VERSION, get_default_stealth_args
 from .download import binary_info, check_for_update, clear_cache, ensure_binary
 from ._version import __version__
@@ -40,6 +40,8 @@ __all__ = [
    "check_for_update",
    "CHROMIUM_VERSION",
    "get_default_stealth_args",
+    "build_args",
+    "maybe_resolve_geoip",
    "ProxySettings",
    "HumanConfig",
    "resolve_human_config",
@@ -1 +1 @@
-__version__ = "0.3.19"
+__version__ = "0.3.21"
@@ -24,6 +24,9 @@ from .download import ensure_binary

 logger = logging.getLogger("cloakbrowser")

+# Sentinel to distinguish "viewport not provided" from "viewport=None" (disable emulation)
+_VIEWPORT_UNSET = object()
+

 def _resolve_timezone(timezone: str | None, kwargs: dict[str, Any]) -> str | None:
    """Accept both timezone and timezone_id — either works, no warning."""
@@ -101,8 +104,12 @@ def launch(
    sync_playwright = _import_sync_playwright(_resolve_backend(backend))

    binary_path = ensure_binary()
-    timezone, locale = _maybe_resolve_geoip(geoip, proxy, timezone, locale)
-    chrome_args = _build_args(stealth_args, args, timezone=timezone, locale=locale, headless=headless)
+    timezone, locale, exit_ip = maybe_resolve_geoip(geoip, proxy, timezone, locale)
+    args = _resolve_webrtc_args(args, proxy)
+    if exit_ip and not (args and any(a.startswith("--fingerprint-webrtc-ip") for a in args)):
+        args = list(args or [])
+        args.append(f"--fingerprint-webrtc-ip={exit_ip}")
+    chrome_args = build_args(stealth_args, args, timezone=timezone, locale=locale, headless=headless)

    logger.debug("Launching stealth Chromium (headless=%s, args=%d)", headless, len(chrome_args))

@@ -186,8 +193,12 @@ async def launch_async(  # noqa: C901
    async_playwright = _import_async_playwright(_resolve_backend(backend))

    binary_path = ensure_binary()
-    timezone, locale = _maybe_resolve_geoip(geoip, proxy, timezone, locale)
-    chrome_args = _build_args(stealth_args, args, timezone=timezone, locale=locale, headless=headless)
+    timezone, locale, exit_ip = maybe_resolve_geoip(geoip, proxy, timezone, locale)
+    args = _resolve_webrtc_args(args, proxy)
+    if exit_ip and not (args and any(a.startswith("--fingerprint-webrtc-ip") for a in args)):
+        args = list(args or [])
+        args.append(f"--fingerprint-webrtc-ip={exit_ip}")
+    chrome_args = build_args(stealth_args, args, timezone=timezone, locale=locale, headless=headless)

    logger.debug("Launching stealth Chromium async (headless=%s, args=%d)", headless, len(chrome_args))

@@ -229,7 +240,7 @@ def launch_persistent_context(
    args: list[str] | None = None,
    stealth_args: bool = True,
    user_agent: str | None = None,
-    viewport: dict | None = None,
+    viewport: dict | None = _VIEWPORT_UNSET,
    locale: str | None = None,
    timezone: str | None = None,
    color_scheme: Literal["light", "dark", "no-preference"] | None = None,
@@ -256,6 +267,7 @@ def launch_persistent_context(
        stealth_args: Include default stealth fingerprint args (default True).
        user_agent: Custom user agent string.
        viewport: Viewport size dict, e.g. {"width": 1920, "height": 1080}.
+            Pass None to disable viewport emulation (use OS window size).
        locale: Browser locale, e.g. "en-US".
        timezone: IANA timezone (e.g. 'America/New_York').
        color_scheme: Color scheme preference — 'light', 'dark', or 'no-preference'.
@@ -284,8 +296,12 @@ def launch_persistent_context(
    timezone = _resolve_timezone(timezone, kwargs)

    binary_path = ensure_binary()
-    timezone, locale = _maybe_resolve_geoip(geoip, proxy, timezone, locale)
-    chrome_args = _build_args(stealth_args, args, timezone=timezone, locale=locale, headless=headless)
+    timezone, locale, exit_ip = maybe_resolve_geoip(geoip, proxy, timezone, locale)
+    args = _resolve_webrtc_args(args, proxy)
+    if exit_ip and not (args and any(a.startswith("--fingerprint-webrtc-ip") for a in args)):
+        args = list(args or [])
+        args.append(f"--fingerprint-webrtc-ip={exit_ip}")
+    chrome_args = build_args(stealth_args, args, timezone=timezone, locale=locale, headless=headless)

    logger.debug(
        "Launching persistent stealth Chromium (headless=%s, user_data_dir=%s)",
@@ -298,7 +314,12 @@ def launch_persistent_context(
    context_kwargs: dict[str, Any] = {}
    if user_agent:
        context_kwargs["user_agent"] = user_agent
-    context_kwargs["viewport"] = viewport or DEFAULT_VIEWPORT
+    if viewport is _VIEWPORT_UNSET:
+        context_kwargs["viewport"] = DEFAULT_VIEWPORT
+    elif viewport is None:
+        context_kwargs["no_viewport"] = True
+    else:
+        context_kwargs["viewport"] = viewport
    if color_scheme:
        context_kwargs["color_scheme"] = color_scheme
    context_kwargs.update(kwargs)
@@ -342,7 +363,7 @@ async def launch_persistent_context_async(
    args: list[str] | None = None,
    stealth_args: bool = True,
    user_agent: str | None = None,
-    viewport: dict | None = None,
+    viewport: dict | None = _VIEWPORT_UNSET,
    locale: str | None = None,
    timezone: str | None = None,
    color_scheme: Literal["light", "dark", "no-preference"] | None = None,
@@ -368,6 +389,7 @@ async def launch_persistent_context_async(
        stealth_args: Include default stealth fingerprint args (default True).
        user_agent: Custom user agent string.
        viewport: Viewport size dict, e.g. {"width": 1920, "height": 1080}.
+            Pass None to disable viewport emulation (use OS window size).
        locale: Browser locale, e.g. "en-US".
        timezone: IANA timezone (e.g. 'America/New_York').
        color_scheme: Color scheme preference — 'light', 'dark', or 'no-preference'.
@@ -399,8 +421,12 @@ async def launch_persistent_context_async(
    timezone = _resolve_timezone(timezone, kwargs)

    binary_path = ensure_binary()
-    timezone, locale = _maybe_resolve_geoip(geoip, proxy, timezone, locale)
-    chrome_args = _build_args(stealth_args, args, timezone=timezone, locale=locale, headless=headless)
+    timezone, locale, exit_ip = maybe_resolve_geoip(geoip, proxy, timezone, locale)
+    args = _resolve_webrtc_args(args, proxy)
+    if exit_ip and not (args and any(a.startswith("--fingerprint-webrtc-ip") for a in args)):
+        args = list(args or [])
+        args.append(f"--fingerprint-webrtc-ip={exit_ip}")
+    chrome_args = build_args(stealth_args, args, timezone=timezone, locale=locale, headless=headless)

    logger.debug(
        "Launching persistent stealth Chromium async (headless=%s, user_data_dir=%s)",
@@ -413,7 +439,12 @@ async def launch_persistent_context_async(
    context_kwargs: dict[str, Any] = {}
    if user_agent:
        context_kwargs["user_agent"] = user_agent
-    context_kwargs["viewport"] = viewport or DEFAULT_VIEWPORT
+    if viewport is _VIEWPORT_UNSET:
+        context_kwargs["viewport"] = DEFAULT_VIEWPORT
+    elif viewport is None:
+        context_kwargs["no_viewport"] = True
+    else:
+        context_kwargs["viewport"] = viewport
    if color_scheme:
        context_kwargs["color_scheme"] = color_scheme
    context_kwargs.update(kwargs)
@@ -456,7 +487,7 @@ def launch_context(
    args: list[str] | None = None,
    stealth_args: bool = True,
    user_agent: str | None = None,
-    viewport: dict | None = None,
+    viewport: dict | None = _VIEWPORT_UNSET,
    locale: str | None = None,
    timezone: str | None = None,
    color_scheme: Literal["light", "dark", "no-preference"] | None = None,
@@ -479,6 +510,7 @@ def launch_context(
        stealth_args: Include default stealth fingerprint args (default True).
        user_agent: Custom user agent string.
        viewport: Viewport size dict, e.g. {"width": 1920, "height": 1080}.
+            Pass None to disable viewport emulation (use OS window size).
        locale: Browser locale, e.g. "en-US".
        timezone: IANA timezone (e.g. 'America/New_York').
        color_scheme: Color scheme preference — 'light', 'dark', or 'no-preference'.
@@ -497,7 +529,11 @@ def launch_context(

    # Resolve geoip BEFORE launch() to avoid double-resolution and ensure
    # resolved values flow to binary flags
-    timezone, locale = _maybe_resolve_geoip(geoip, proxy, timezone, locale)
+    timezone, locale, exit_ip = maybe_resolve_geoip(geoip, proxy, timezone, locale)
+    # Inject geoip exit IP for WebRTC spoofing (free — no extra HTTP call)
+    if exit_ip and not (args and any(a.startswith("--fingerprint-webrtc-ip") for a in args)):
+        args = list(args or [])
+        args.append(f"--fingerprint-webrtc-ip={exit_ip}")
    # --fingerprint-timezone is process-wide (reads CommandLine in renderer),
    # so it applies to ALL contexts, not just the default one.
    # locale and timezone are set via binary flags only — no CDP emulation.
@@ -507,7 +543,12 @@ def launch_context(
    context_kwargs: dict[str, Any] = {}
    if user_agent:
        context_kwargs["user_agent"] = user_agent
-    context_kwargs["viewport"] = viewport or DEFAULT_VIEWPORT
+    if viewport is _VIEWPORT_UNSET:
+        context_kwargs["viewport"] = DEFAULT_VIEWPORT
+    elif viewport is None:
+        context_kwargs["no_viewport"] = True
+    else:
+        context_kwargs["viewport"] = viewport
    if color_scheme:
        context_kwargs["color_scheme"] = color_scheme
    context_kwargs.update(kwargs)
@@ -590,31 +631,91 @@ def _ensure_proxy_scheme(proxy_url: str) -> str:
    return proxy_url if "://" in proxy_url else f"http://{proxy_url}"


-def _maybe_resolve_geoip(
+def _extract_proxy_url(proxy: str | ProxySettings | None) -> str | None:
+    """Extract and normalize proxy URL string from proxy param."""
+    if proxy is None:
+        return None
+    raw = proxy.get("server") if isinstance(proxy, dict) else proxy
+    if not raw:
+        return None
+    return _ensure_proxy_scheme(raw)
+
+
+def maybe_resolve_geoip(
    geoip: bool,
    proxy: str | ProxySettings | None,
    timezone: str | None,
    locale: str | None,
-) -> tuple[str | None, str | None]:
-    """Auto-fill timezone/locale from proxy IP when geoip is enabled."""
-    if not geoip or not proxy or (timezone is not None and locale is not None):
-        return timezone, locale
+) -> tuple[str | None, str | None, str | None]:
+    """Auto-fill timezone/locale from proxy IP when geoip is enabled.

-    from .geoip import resolve_proxy_geo
+    Returns ``(timezone, locale, exit_ip)``.  *exit_ip* is a free bonus
+    from the geoip lookup (no extra HTTP call) — used for WebRTC spoofing.
+    """
+    if not geoip or not proxy:
+        return timezone, locale, None

-    proxy_url = proxy.get("server") if isinstance(proxy, dict) else proxy
+    from .geoip import resolve_proxy_geo_with_ip
+
+    proxy_url = _extract_proxy_url(proxy)
    if not proxy_url:
-        return timezone, locale
-    proxy_url = _ensure_proxy_scheme(proxy_url)
-    geo_tz, geo_locale = resolve_proxy_geo(proxy_url)
+        return timezone, locale, None
+
+    # When both tz/locale are explicit, still resolve exit IP for WebRTC
+    if timezone is not None and locale is not None:
+        from .geoip import _resolve_exit_ip
+        exit_ip = _resolve_exit_ip(proxy_url)
+        return timezone, locale, exit_ip
+
+    geo_tz, geo_locale, exit_ip = resolve_proxy_geo_with_ip(proxy_url)
    if timezone is None:
        timezone = geo_tz
    if locale is None:
        locale = geo_locale
-    return timezone, locale
+    return timezone, locale, exit_ip


-def _build_args(
+def _resolve_webrtc_args(
+    args: list[str] | None,
+    proxy: str | ProxySettings | None,
+) -> list[str] | None:
+    """Replace --fingerprint-webrtc-ip=auto with the resolved proxy exit IP.
+
+    Returns args unchanged if no ``auto`` value is present.
+    """
+    if not args:
+        return args
+    idx = None
+    for i, a in enumerate(args):
+        if a == "--fingerprint-webrtc-ip=auto":
+            idx = i
+            break
+    if idx is None:
+        return args
+    proxy_url = _extract_proxy_url(proxy)
+    if not proxy_url:
+        logger.debug("--fingerprint-webrtc-ip=auto but no proxy set — removing flag")
+        args = list(args)
+        del args[idx]
+        return args
+    try:
+        from .geoip import _resolve_exit_ip
+        exit_ip = _resolve_exit_ip(proxy_url)
+    except Exception:
+        logger.debug("WebRTC IP resolution failed — removing flag")
+        args = list(args)
+        del args[idx]
+        return args
+    if exit_ip:
+        args = list(args)
+        args[idx] = f"--fingerprint-webrtc-ip={exit_ip}"
+    else:
+        args = list(args)
+        del args[idx]
+    return args
+
+
+def build_args(
    stealth_args: bool,
    extra_args: list[str] | None,
    timezone: str | None = None,
@@ -15,10 +15,10 @@ from ._version import __version__
 # CHROMIUM_VERSION is the latest across all platforms (for display/reference).
 # Use get_chromium_version() for the current platform's actual version.
 # ---------------------------------------------------------------------------
-CHROMIUM_VERSION = "145.0.7632.159.8"
+CHROMIUM_VERSION = "145.0.7632.159.9"

 PLATFORM_CHROMIUM_VERSIONS: dict[str, str] = {
-    "linux-x64": "145.0.7632.159.8",
+    "linux-x64": "145.0.7632.159.9",
    "linux-arm64": "145.0.7632.159.7",
    "darwin-arm64": "145.0.7632.109.2",
    "darwin-x64": "145.0.7632.109.2",
@@ -48,26 +48,17 @@ def get_default_stealth_args() -> list[str]:

    base = [
        "--no-sandbox",
-        "--disable-blink-features=AutomationControlled",
        f"--fingerprint={seed}",
    ]

    if system == "Darwin":
        # Tell the fingerprint patches we're on macOS so GPU/UA match natively
-        return base + [
-            "--fingerprint-platform=macos",
-            "--fingerprint-gpu-vendor=Google Inc. (Apple)",
-            "--fingerprint-gpu-renderer=ANGLE (Apple, ANGLE Metal Renderer: Apple M3, Unspecified Version)",
-        ]
+        return base + ["--fingerprint-platform=macos"]

    # Linux/Windows: Windows fingerprint profile
-    # Hardware concurrency, device memory, screen, and window size are
+    # Hardware concurrency, device memory, screen, window size, and GPU are
    # auto-generated by the binary from the seed (v14+).
-    return base + [
-        "--fingerprint-platform=windows",
-        "--fingerprint-gpu-vendor=Google Inc. (NVIDIA)",
-        "--fingerprint-gpu-renderer=ANGLE (NVIDIA, NVIDIA GeForce RTX 3070 (0x00002484) Direct3D11 vs_5_0 ps_5_0, D3D11)",
-    ]
+    return base + ["--fingerprint-platform=windows"]


 # ---------------------------------------------------------------------------
@@ -53,6 +53,18 @@ def resolve_proxy_geo(proxy_url: str) -> tuple[str | None, str | None]:
    Returns ``(timezone, locale)`` — either or both may be ``None`` on
    failure (missing dep, DB download error, lookup miss).  Never raises.
    """
+    tz, locale, _ip = resolve_proxy_geo_with_ip(proxy_url)
+    return tz, locale
+
+
+def resolve_proxy_geo_with_ip(
+    proxy_url: str,
+) -> tuple[str | None, str | None, str | None]:
+    """Resolve timezone, locale, and exit IP from a proxy.
+
+    Returns ``(timezone, locale, exit_ip)``.  The exit IP is a free bonus
+    from the lookup — reused for WebRTC spoofing without an extra HTTP call.
+    """
    try:
        import geoip2.database  # noqa: F811
    except ImportError:
@@ -63,14 +75,14 @@ def resolve_proxy_geo(proxy_url: str) -> tuple[str | None, str | None]:

    db_path = _ensure_geoip_db()
    if db_path is None:
-        return None, None
+        return None, None, None

    # Exit IP (through proxy) is most accurate — gateway DNS may differ from exit
    ip = _resolve_exit_ip(proxy_url)
    if ip is None:
        ip = _resolve_proxy_ip(proxy_url)
    if ip is None:
-        return None, None
+        return None, None, None

    try:
        with geoip2.database.Reader(str(db_path)) as reader:
@@ -82,10 +94,10 @@ def resolve_proxy_geo(proxy_url: str) -> tuple[str | None, str | None]:
                "GeoIP: %s → tz=%s, country=%s, locale=%s",
                ip, timezone, country, locale,
            )
-            return timezone, locale
+            return timezone, locale, ip
    except Exception as exc:
        logger.debug("GeoIP lookup failed for %s: %s", ip, exc)
-        return None, None
+        return None, None, ip


 # ---------------------------------------------------------------------------
@@ -3,14 +3,20 @@
 Activated via humanize=True in launch() / launch_async().
 Patches page methods to use Bezier mouse curves, realistic typing, and smooth scrolling.

+Stealth-aware (fixes #110):
+  - isInputElement / isSelectorFocused use CDP Isolated Worlds instead of page.evaluate
+  - Shift symbol typing uses CDP Input.dispatchKeyEvent for isTrusted=true events
+  - Falls back to page.evaluate only when CDP session is unavailable
+
 Supports both sync and async Playwright APIs.
 """

 from __future__ import annotations

+import json
 import logging
 import sys
-from typing import Any
+from typing import Any, Optional

 from .config import HumanConfig, HumanPreset, resolve_config
 from .config import rand, rand_range, sleep_ms, async_sleep_ms
@@ -33,6 +39,153 @@ __all__ = [

 logger = logging.getLogger("cloakbrowser.human")

+
+# ============================================================================
+# CDP Isolated World — stealth DOM evaluation
+# ============================================================================
+
+class _SyncIsolatedWorld:
+    """Manages a CDP isolated execution context for DOM reads (sync).
+
+    Produces clean Error.stack traces (no 'eval at evaluate :302:')
+    and is invisible to querySelector monkey-patches in the main world.
+    Context ID is invalidated on navigation and auto-recreated on next call.
+    """
+
+    __slots__ = ("_page", "_cdp", "_context_id")
+
+    def __init__(self, page: Any):
+        self._page = page
+        self._cdp: Any = None
+        self._context_id: Optional[int] = None
+
+    def _ensure_cdp(self) -> Any:
+        if self._cdp is None:
+            self._cdp = self._page.context.new_cdp_session(self._page)
+        return self._cdp
+
+    def _create_world(self) -> int:
+        cdp = self._ensure_cdp()
+        tree = cdp.send("Page.getFrameTree")
+        frame_id = tree["frameTree"]["frame"]["id"]
+        result = cdp.send("Page.createIsolatedWorld", {
+            "frameId": frame_id,
+            "worldName": "",
+            "grantUniveralAccess": True,
+        })
+        self._context_id = result["executionContextId"]
+        return self._context_id
+
+    def evaluate(self, expression: str) -> Any:
+        """Evaluate JS in isolated world. Auto-recreates on stale context."""
+        if self._context_id is None:
+            self._create_world()
+
+        for attempt in range(2):
+            try:
+                result = self._cdp.send("Runtime.evaluate", {
+                    "expression": expression,
+                    "contextId": self._context_id,
+                    "returnByValue": True,
+                })
+                if "exceptionDetails" in result:
+                    if attempt == 0:
+                        self._create_world()
+                        continue
+                    return None
+                return result.get("result", {}).get("value")
+            except Exception:
+                if attempt == 0:
+                    self._context_id = None
+                    try:
+                        self._create_world()
+                    except Exception:
+                        return None
+                    continue
+                return None
+        return None
+
+    def invalidate(self) -> None:
+        """Mark context as stale — call after navigation."""
+        self._context_id = None
+
+    def get_cdp_session(self) -> Any:
+        """Get the underlying CDP session (reused for Input.dispatchKeyEvent)."""
+        return self._ensure_cdp()
+
+
+class _AsyncIsolatedWorld:
+    """Manages a CDP isolated execution context for DOM reads (async).
+
+    Same as _SyncIsolatedWorld but uses await for all CDP calls.
+    """
+
+    __slots__ = ("_page", "_cdp", "_context_id")
+
+    def __init__(self, page: Any):
+        self._page = page
+        self._cdp: Any = None
+        self._context_id: Optional[int] = None
+
+    async def _ensure_cdp(self) -> Any:
+        if self._cdp is None:
+            self._cdp = await self._page.context.new_cdp_session(self._page)
+        return self._cdp
+
+    async def _create_world(self) -> int:
+        cdp = await self._ensure_cdp()
+        tree = await cdp.send("Page.getFrameTree")
+        frame_id = tree["frameTree"]["frame"]["id"]
+        result = await cdp.send("Page.createIsolatedWorld", {
+            "frameId": frame_id,
+            "worldName": "",
+            "grantUniveralAccess": True,
+        })
+        self._context_id = result["executionContextId"]
+        return self._context_id
+
+    async def evaluate(self, expression: str) -> Any:
+        """Evaluate JS in isolated world. Auto-recreates on stale context."""
+        if self._context_id is None:
+            await self._create_world()
+
+        for attempt in range(2):
+            try:
+                result = await self._cdp.send("Runtime.evaluate", {
+                    "expression": expression,
+                    "contextId": self._context_id,
+                    "returnByValue": True,
+                })
+                if "exceptionDetails" in result:
+                    if attempt == 0:
+                        await self._create_world()
+                        continue
+                    return None
+                return result.get("result", {}).get("value")
+            except Exception:
+                if attempt == 0:
+                    self._context_id = None
+                    try:
+                        await self._create_world()
+                    except Exception:
+                        return None
+                    continue
+                return None
+        return None
+
+    def invalidate(self) -> None:
+        """Mark context as stale — call after navigation."""
+        self._context_id = None
+
+    async def get_cdp_session(self) -> Any:
+        """Get the underlying CDP session (reused for Input.dispatchKeyEvent)."""
+        return await self._ensure_cdp()
+
+
+# ============================================================================
+# Cursor state
+# ============================================================================
+
 class _CursorState:
    __slots__ = ("x", "y", "initialized")

@@ -42,7 +195,30 @@ class _CursorState:
        self.initialized: bool = False


+# ============================================================================
+# Stealth DOM queries — isolated world with evaluate fallback
+# ============================================================================
+
 def _is_input_element(page: Any, selector: str) -> bool:
+    """Check if selector is an input element. Uses CDP isolated world when available."""
+    world: Optional[_SyncIsolatedWorld] = getattr(page, '_stealth_world', None)
+    if world is not None:
+        try:
+            escaped = json.dumps(selector)
+            result = world.evaluate(
+                f"(() => {{"
+                f"  const el = document.querySelector({escaped});"
+                f"  if (!el) return false;"
+                f"  const tag = el.tagName.toLowerCase();"
+                f"  return tag === 'input' || tag === 'textarea'"
+                f"    || el.getAttribute('contenteditable') === 'true';"
+                f"}})()"
+            )
+            return bool(result)
+        except Exception:
+            pass
+
+    # Fallback: page.evaluate (detectable — should only happen if CDP fails)
    try:
        return page.evaluate(
            """(sel) => {
@@ -59,6 +235,24 @@ def _is_input_element(page: Any, selector: str) -> bool:


 async def _async_is_input_element(page: Any, selector: str) -> bool:
+    """Check if selector is an input element (async). Uses CDP isolated world when available."""
+    world: Optional[_AsyncIsolatedWorld] = getattr(page, '_stealth_world', None)
+    if world is not None:
+        try:
+            escaped = json.dumps(selector)
+            result = await world.evaluate(
+                f"(() => {{"
+                f"  const el = document.querySelector({escaped});"
+                f"  if (!el) return false;"
+                f"  const tag = el.tagName.toLowerCase();"
+                f"  return tag === 'input' || tag === 'textarea'"
+                f"    || el.getAttribute('contenteditable') === 'true';"
+                f"}})()"
+            )
+            return bool(result)
+        except Exception:
+            pass
+
    try:
        return await page.evaluate(
            """(sel) => {
@@ -75,7 +269,22 @@ async def _async_is_input_element(page: Any, selector: str) -> bool:


 def _is_selector_focused(page: Any, selector: str) -> bool:
-    """Check if the element matching selector is currently focused."""
+    """Check if the element matching selector is currently focused.
+    Uses CDP isolated world when available."""
+    world: Optional[_SyncIsolatedWorld] = getattr(page, '_stealth_world', None)
+    if world is not None:
+        try:
+            escaped = json.dumps(selector)
+            result = world.evaluate(
+                f"(() => {{"
+                f"  const el = document.querySelector({escaped});"
+                f"  return el === document.activeElement;"
+                f"}})()"
+            )
+            return bool(result)
+        except Exception:
+            pass
+
    try:
        return page.evaluate(
            """(sel) => {
@@ -89,7 +298,22 @@ def _is_selector_focused(page: Any, selector: str) -> bool:


 async def _async_is_selector_focused(page: Any, selector: str) -> bool:
-    """Check if the element matching selector is currently focused (async)."""
+    """Check if the element matching selector is currently focused (async).
+    Uses CDP isolated world when available."""
+    world: Optional[_AsyncIsolatedWorld] = getattr(page, '_stealth_world', None)
+    if world is not None:
+        try:
+            escaped = json.dumps(selector)
+            result = await world.evaluate(
+                f"(() => {{"
+                f"  const el = document.querySelector({escaped});"
+                f"  return el === document.activeElement;"
+                f"}})()"
+            )
+            return bool(result)
+        except Exception:
+            pass
+
    try:
        return await page.evaluate(
            """(sel) => {
@@ -216,7 +440,6 @@ def _patch_locator_class_sync():
    def _humanized_press(self, key, **kwargs):
        if _is_humanized(self):
            selector = _get_selector(self)
-            # Only click if not already focused — avoids redundant mouse moves
            if not _is_selector_focused(self.page, selector):
                self.page.click(selector)
            sleep_ms(rand(50, 150))
@@ -516,6 +739,17 @@ def patch_page(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:
    page._original = originals
    page._human_cfg = cfg

+    # --- Stealth infrastructure ---
+    try:
+        stealth = _SyncIsolatedWorld(page)
+        page._stealth_world = stealth
+        cdp_session = stealth.get_cdp_session()
+    except Exception:
+        stealth = None
+        page._stealth_world = None
+        cdp_session = None
+        logger.debug("Could not create CDP session — stealth features disabled")
+
    raw_mouse: RawMouse = type("_RawMouse", (), {
        "move": originals.mouse_move,
        "down": originals.mouse_down,
@@ -539,6 +773,9 @@ def patch_page(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:

    def _human_goto(url: str, **kwargs: Any) -> Any:
        response = originals.goto(url, **kwargs)
+        # Invalidate isolated world after navigation (context ID becomes stale)
+        if stealth is not None:
+            stealth.invalidate()
        return response

    def _human_click(selector: str, **kwargs: Any) -> None:
@@ -593,7 +830,7 @@ def patch_page(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:
        sleep_ms(rand_range(cfg.field_switch_delay))
        _human_click(selector)
        sleep_ms(rand(100, 250))
-        human_type(page, raw_keyboard, text, cfg)
+        human_type(page, raw_keyboard, text, cfg, cdp_session=cdp_session)

    def _human_fill(selector: str, value: str, **kwargs: Any) -> None:
        sleep_ms(rand_range(cfg.field_switch_delay))
@@ -603,7 +840,7 @@ def patch_page(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:
        sleep_ms(rand(30, 80))
        originals.keyboard_press("Backspace")
        sleep_ms(rand(50, 150))
-        human_type(page, raw_keyboard, value, cfg)
+        human_type(page, raw_keyboard, value, cfg, cdp_session=cdp_session)

    def _human_check(selector: str, **kwargs: Any) -> None:
        try:
@@ -646,7 +883,7 @@ def patch_page(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:
        human_click(raw_mouse, False, cfg)

    def _human_keyboard_type(text: str, **kwargs: Any) -> None:
-        human_type(page, raw_keyboard, text, cfg)
+        human_type(page, raw_keyboard, text, cfg, cdp_session=cdp_session)

    page.goto = _human_goto
    page.click = _human_click
@@ -659,10 +896,10 @@ def patch_page(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:
    page.press = _human_press
    page.mouse.move = _human_mouse_move
    page.mouse.click = _human_mouse_click
-    page.keyboard.type = _human_keyboard_type  
+    page.keyboard.type = _human_keyboard_type
    # --- Patch Frame-level methods (for sub-frames) ---
    _patch_frames_sync(page, cfg, cursor, raw_mouse, raw_keyboard, originals)
-    
+
    # Initialize cursor immediately so it doesn't visibly jump from (0,0)
    cursor.x = rand(cfg.initial_cursor_x[0], cfg.initial_cursor_x[1])
    cursor.y = rand(cfg.initial_cursor_y[0], cfg.initial_cursor_y[1])
@@ -690,6 +927,10 @@ def _patch_frames_sync(

            def _frame_aware_goto(url: str, **kwargs: Any) -> Any:
                response = _orig_goto(url, **kwargs)
+                # Invalidate isolated world after navigation
+                stealth_world = getattr(page, '_stealth_world', None)
+                if stealth_world is not None:
+                    stealth_world.invalidate()
                for frame in _iter_frames(page):
                    if not getattr(frame, "_human_patched", False):
                        _patch_single_frame_sync(frame, page, cfg, cursor, raw_mouse, raw_keyboard, originals)
@@ -709,7 +950,6 @@ def _patch_single_frame_sync(
        return
    frame._human_patched = True

-    # Save originals for methods that need fallback
    _orig_frame_select_option = frame.select_option
    _orig_frame_drag_and_drop = getattr(frame, 'drag_and_drop', None)

@@ -841,6 +1081,7 @@ def patch_browser(browser: Any, cfg: HumanConfig) -> None:


 def patch_page_async(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:
+    """Replace page methods with human-like implementations (async)."""
    originals = type("Originals", (), {
        "click": page.click,
        "type": page.type,
@@ -863,6 +1104,19 @@ def patch_page_async(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:
    page._original = originals
    page._human_cfg = cfg

+    # --- Stealth infrastructure (lazy-initialized, async) ---
+    stealth = _AsyncIsolatedWorld(page)
+    page._stealth_world = stealth
+    cdp_session_holder: list[Any] = [None]  # mutable container for closure
+
+    async def _ensure_cdp() -> Any:
+        if cdp_session_holder[0] is None:
+            try:
+                cdp_session_holder[0] = await stealth.get_cdp_session()
+            except Exception:
+                logger.debug("Could not create async CDP session")
+        return cdp_session_holder[0]
+
    raw_mouse: AsyncRawMouse = type("_AsyncRawMouse", (), {
        "move": originals.mouse_move,
        "down": originals.mouse_down,
@@ -886,6 +1140,8 @@ def patch_page_async(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:

    async def _human_goto(url: str, **kwargs: Any) -> Any:
        response = await originals.goto(url, **kwargs)
+        # Invalidate isolated world after navigation
+        stealth.invalidate()
        return response

    async def _human_click(selector: str, **kwargs: Any) -> None:
@@ -940,7 +1196,8 @@ def patch_page_async(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:
        await async_sleep_ms(rand_range(cfg.field_switch_delay))
        await _human_click(selector)
        await async_sleep_ms(rand(100, 250))
-        await async_human_type(page, raw_keyboard, text, cfg)
+        cdp = await _ensure_cdp()
+        await async_human_type(page, raw_keyboard, text, cfg, cdp_session=cdp)

    async def _human_fill(selector: str, value: str, **kwargs: Any) -> None:
        await async_sleep_ms(rand_range(cfg.field_switch_delay))
@@ -950,7 +1207,8 @@ def patch_page_async(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:
        await async_sleep_ms(rand(30, 80))
        await originals.keyboard_press("Backspace")
        await async_sleep_ms(rand(50, 150))
-        await async_human_type(page, raw_keyboard, value, cfg)
+        cdp = await _ensure_cdp()
+        await async_human_type(page, raw_keyboard, value, cfg, cdp_session=cdp)

    async def _human_check(selector: str, **kwargs: Any) -> None:
        try:
@@ -988,7 +1246,8 @@ def patch_page_async(page: Any, cfg: HumanConfig, cursor: _CursorState) -> None:
        await async_human_click(raw_mouse, False, cfg)

    async def _human_keyboard_type(text: str, **kwargs: Any) -> None:
-        await async_human_type(page, raw_keyboard, text, cfg)
+        cdp = await _ensure_cdp()
+        await async_human_type(page, raw_keyboard, text, cfg, cdp_session=cdp)

    page.goto = _human_goto
    page.click = _human_click
@@ -1024,6 +1283,10 @@ def _patch_frames_async(

            async def _frame_aware_goto(url: str, **kwargs: Any) -> Any:
                response = await _orig_goto(url, **kwargs)
+                # Invalidate isolated world after navigation
+                stealth_world = getattr(page, '_stealth_world', None)
+                if stealth_world is not None:
+                    stealth_world.invalidate()
                for frame in _iter_frames(page):
                    if not getattr(frame, "_human_patched", False):
                        _patch_single_frame_async(frame, page, cfg, cursor, raw_mouse, raw_keyboard, originals)
@@ -1,9 +1,14 @@
-"""cloakbrowser-human — Human-like keyboard input."""
+"""cloakbrowser-human — Human-like keyboard input.
+
+Stealth-aware: when a CDP session is provided, shift symbols are typed
+via CDP Input.dispatchKeyEvent (isTrusted=true, no evaluate stack trace).
+Falls back to page.evaluate when no CDP session is available.
+"""

 from __future__ import annotations

 import random
-from typing import Any, Protocol
+from typing import Any, Optional, Protocol

 from .config import HumanConfig, rand, rand_range, sleep_ms

@@ -28,6 +33,25 @@ NEARBY_KEYS = {
    '6': '57ty', '7': '68yu', '8': '79ui', '9': '80io', '0': '9p',
 }

+# CDP key code for each shift symbol's physical key.
+_SHIFT_SYMBOL_CODES: dict[str, str] = {
+    '!': 'Digit1', '@': 'Digit2', '#': 'Digit3', '$': 'Digit4',
+    '%': 'Digit5', '^': 'Digit6', '&': 'Digit7', '*': 'Digit8',
+    '(': 'Digit9', ')': 'Digit0', '_': 'Minus', '+': 'Equal',
+    '{': 'BracketLeft', '}': 'BracketRight', '|': 'Backslash',
+    ':': 'Semicolon', '"': 'Quote', '<': 'Comma', '>': 'Period',
+    '?': 'Slash', '~': 'Backquote',
+}
+
+# Windows virtual key codes for Input.dispatchKeyEvent.
+_SHIFT_SYMBOL_KEYCODES: dict[str, int] = {
+    '!': 49, '@': 50, '#': 51, '$': 52, '%': 53,
+    '^': 54, '&': 55, '*': 56, '(': 57, ')': 48,
+    '_': 189, '+': 187, '{': 219, '}': 221, '|': 220,
+    ':': 186, '"': 222, '<': 188, '>': 190, '?': 191,
+    '~': 192,
+}
+

 def _get_nearby_key(ch: str) -> str:
    """Return a random adjacent key for the given character."""
@@ -39,7 +63,17 @@ def _get_nearby_key(ch: str) -> str:
    return ch


-def human_type(page: Any, raw: RawKeyboard, text: str, cfg: HumanConfig) -> None:
+def human_type(
+    page: Any, raw: RawKeyboard, text: str, cfg: HumanConfig,
+    cdp_session: Any = None,
+) -> None:
+    """Type text with human-like per-character timing.
+
+    Args:
+        cdp_session: If provided, shift symbols use CDP Input.dispatchKeyEvent
+            producing isTrusted=true events with no evaluate stack trace.
+            If None, falls back to page.evaluate (detectable).
+    """
    for i, ch in enumerate(text):
        # Non-ASCII characters (Cyrillic, CJK, emoji) — use insertText
        if not ch.isascii():
@@ -62,7 +96,7 @@ def human_type(page: Any, raw: RawKeyboard, text: str, cfg: HumanConfig) -> None
        if ch.isupper() and ch.isalpha():
            _type_shifted_char(page, raw, ch, cfg)
        elif ch in SHIFT_SYMBOLS:
-            _type_shift_symbol(page, raw, ch, cfg)
+            _type_shift_symbol(page, raw, ch, cfg, cdp_session)
        else:
            _type_normal_char(raw, ch, cfg)

@@ -86,22 +120,65 @@ def _type_shifted_char(page: Any, raw: RawKeyboard, ch: str, cfg: HumanConfig) -
    raw.up("Shift")


-def _type_shift_symbol(page: Any, raw: RawKeyboard, ch: str, cfg: HumanConfig) -> None:
-    raw.down("Shift")
-    sleep_ms(rand_range(cfg.shift_down_delay))
-    raw.insert_text(ch)
-    page.evaluate(
-        """(key) => {
-            const el = document.activeElement;
-            if (el) {
-                el.dispatchEvent(new KeyboardEvent('keydown', { key, bubbles: true }));
-                el.dispatchEvent(new KeyboardEvent('keyup', { key, bubbles: true }));
-            }
-        }""",
-        ch,
-    )
-    sleep_ms(rand_range(cfg.shift_up_delay))
-    raw.up("Shift")
+def _type_shift_symbol(
+    page: Any, raw: RawKeyboard, ch: str, cfg: HumanConfig,
+    cdp_session: Any = None,
+) -> None:
+    """Type a shift symbol character.
+
+    Stealth path (cdp_session provided):
+        Uses CDP Input.dispatchKeyEvent → isTrusted=true, clean stack.
+
+    Fallback path (no cdp_session):
+        Uses raw.insertText + page.evaluate to dispatch synthetic KeyboardEvent.
+        Detectable via isTrusted=false and evaluate stack frame.
+    """
+    if cdp_session is not None:
+        # --- Stealth path: CDP Input.dispatchKeyEvent ---
+        code = _SHIFT_SYMBOL_CODES.get(ch, '')
+        key_code = _SHIFT_SYMBOL_KEYCODES.get(ch, 0)
+
+        raw.down("Shift")
+        sleep_ms(rand_range(cfg.shift_down_delay))
+
+        cdp_session.send("Input.dispatchKeyEvent", {
+            "type": "keyDown",
+            "modifiers": 8,  # Shift modifier flag
+            "key": ch,
+            "code": code,
+            "windowsVirtualKeyCode": key_code,
+            "text": ch,
+            "unmodifiedText": ch,
+        })
+        sleep_ms(rand_range(cfg.key_hold))
+
+        cdp_session.send("Input.dispatchKeyEvent", {
+            "type": "keyUp",
+            "modifiers": 8,
+            "key": ch,
+            "code": code,
+            "windowsVirtualKeyCode": key_code,
+        })
+
+        sleep_ms(rand_range(cfg.shift_up_delay))
+        raw.up("Shift")
+    else:
+        # --- Fallback path: page.evaluate (detectable) ---
+        raw.down("Shift")
+        sleep_ms(rand_range(cfg.shift_down_delay))
+        raw.insert_text(ch)
+        page.evaluate(
+            """(key) => {
+                const el = document.activeElement;
+                if (el) {
+                    el.dispatchEvent(new KeyboardEvent('keydown', { key, bubbles: true }));
+                    el.dispatchEvent(new KeyboardEvent('keyup', { key, bubbles: true }));
+                }
+            }""",
+            ch,
+        )
+        sleep_ms(rand_range(cfg.shift_up_delay))
+        raw.up("Shift")


 def _inter_char_delay(cfg: HumanConfig) -> None:
@@ -2,15 +2,19 @@

 Mirrors keyboard.py but uses ``await`` for all Playwright calls and
 ``async_sleep_ms`` instead of ``sleep_ms``.
+
+Stealth-aware: when a CDP session is provided, shift symbols are typed
+via CDP Input.dispatchKeyEvent (isTrusted=true, no evaluate stack trace).
 """

 from __future__ import annotations

 import random
-from typing import Any, Protocol
+from typing import Any, Optional, Protocol

 from .config import HumanConfig, rand, rand_range, async_sleep_ms
 from .keyboard import SHIFT_SYMBOLS, NEARBY_KEYS, _get_nearby_key
+from .keyboard import _SHIFT_SYMBOL_CODES, _SHIFT_SYMBOL_KEYCODES


 class AsyncRawKeyboard(Protocol):
@@ -20,7 +24,17 @@ class AsyncRawKeyboard(Protocol):
    async def insert_text(self, text: str) -> None: ...


-async def async_human_type(page: Any, raw: AsyncRawKeyboard, text: str, cfg: HumanConfig) -> None:
+async def async_human_type(
+    page: Any, raw: AsyncRawKeyboard, text: str, cfg: HumanConfig,
+    cdp_session: Any = None,
+) -> None:
+    """Type text with human-like per-character timing (async).
+
+    Args:
+        cdp_session: If provided, shift symbols use CDP Input.dispatchKeyEvent
+            producing isTrusted=true events with no evaluate stack trace.
+            If None, falls back to page.evaluate (detectable).
+    """
    for i, ch in enumerate(text):
        # Non-ASCII characters (Cyrillic, CJK, emoji) — use insertText
        if not ch.isascii():
@@ -43,7 +57,7 @@ async def async_human_type(page: Any, raw: AsyncRawKeyboard, text: str, cfg: Hum
        if ch.isupper() and ch.isalpha():
            await _type_shifted_char(page, raw, ch, cfg)
        elif ch in SHIFT_SYMBOLS:
-            await _type_shift_symbol(page, raw, ch, cfg)
+            await _type_shift_symbol(page, raw, ch, cfg, cdp_session)
        else:
            await _type_normal_char(raw, ch, cfg)

@@ -67,22 +81,65 @@ async def _type_shifted_char(page: Any, raw: AsyncRawKeyboard, ch: str, cfg: Hum
    await raw.up("Shift")


-async def _type_shift_symbol(page: Any, raw: AsyncRawKeyboard, ch: str, cfg: HumanConfig) -> None:
-    await raw.down("Shift")
-    await async_sleep_ms(rand_range(cfg.shift_down_delay))
-    await raw.insert_text(ch)
-    await page.evaluate(
-        """(key) => {
-            const el = document.activeElement;
-            if (el) {
-                el.dispatchEvent(new KeyboardEvent('keydown', { key, bubbles: true }));
-                el.dispatchEvent(new KeyboardEvent('keyup', { key, bubbles: true }));
-            }
-        }""",
-        ch,
-    )
-    await async_sleep_ms(rand_range(cfg.shift_up_delay))
-    await raw.up("Shift")
+async def _type_shift_symbol(
+    page: Any, raw: AsyncRawKeyboard, ch: str, cfg: HumanConfig,
+    cdp_session: Any = None,
+) -> None:
+    """Type a shift symbol character (async).
+
+    Stealth path (cdp_session provided):
+        Uses CDP Input.dispatchKeyEvent → isTrusted=true, clean stack.
+
+    Fallback path (no cdp_session):
+        Uses raw.insertText + page.evaluate to dispatch synthetic KeyboardEvent.
+        Detectable via isTrusted=false and evaluate stack frame.
+    """
+    if cdp_session is not None:
+        # --- Stealth path: CDP Input.dispatchKeyEvent ---
+        code = _SHIFT_SYMBOL_CODES.get(ch, '')
+        key_code = _SHIFT_SYMBOL_KEYCODES.get(ch, 0)
+
+        await raw.down("Shift")
+        await async_sleep_ms(rand_range(cfg.shift_down_delay))
+
+        await cdp_session.send("Input.dispatchKeyEvent", {
+            "type": "keyDown",
+            "modifiers": 8,  # Shift modifier flag
+            "key": ch,
+            "code": code,
+            "windowsVirtualKeyCode": key_code,
+            "text": ch,
+            "unmodifiedText": ch,
+        })
+        await async_sleep_ms(rand_range(cfg.key_hold))
+
+        await cdp_session.send("Input.dispatchKeyEvent", {
+            "type": "keyUp",
+            "modifiers": 8,
+            "key": ch,
+            "code": code,
+            "windowsVirtualKeyCode": key_code,
+        })
+
+        await async_sleep_ms(rand_range(cfg.shift_up_delay))
+        await raw.up("Shift")
+    else:
+        # --- Fallback path: page.evaluate (detectable) ---
+        await raw.down("Shift")
+        await async_sleep_ms(rand_range(cfg.shift_down_delay))
+        await raw.insert_text(ch)
+        await page.evaluate(
+            """(key) => {
+                const el = document.activeElement;
+                if (el) {
+                    el.dispatchEvent(new KeyboardEvent('keydown', { key, bubbles: true }));
+                    el.dispatchEvent(new KeyboardEvent('keyup', { key, bubbles: true }));
+                }
+            }""",
+            ch,
+        )
+        await async_sleep_ms(rand_range(cfg.shift_up_delay))
+        await raw.up("Shift")


 async def _inter_char_delay(cfg: HumanConfig) -> None:
@@ -3,14 +3,13 @@
 browser-use handles AI agent logic, CloakBrowser handles bot detection.
 Your agent can now browse sites behind Cloudflare, reCAPTCHA, DataDome.

-Requires: pip install browser-use cloakbrowser langchain-openai
+Requires: pip install browser-use cloakbrowser
 Set OPENAI_API_KEY (or swap for another LLM provider).
 """

 import asyncio

-from browser_use import Agent, Browser, BrowserConfig
-from langchain_openai import ChatOpenAI
+from browser_use import Agent, BrowserSession, ChatOpenAI

 from cloakbrowser import launch_async

@@ -23,14 +22,13 @@ async def main():
    )

    # Step 2: Connect browser-use to the stealth browser via CDP
-    config = BrowserConfig(cdp_url="http://127.0.0.1:9242")
-    browser = Browser(config=config)
+    session = BrowserSession(cdp_url="http://127.0.0.1:9242")

    # Step 3: Run your AI agent — it browses through CloakBrowser
    agent = Agent(
        task="Go to https://www.google.com and search for 'browser automation'",
        llm=ChatOpenAI(model="gpt-4o-mini"),
-        browser=browser,
+        browser_session=session,
    )

    result = await agent.run()
@@ -21,7 +21,7 @@ async def main():
    )

    # Step 2: Connect Crawl4AI to the stealth browser via CDP
-    browser_config = BrowserConfig(cdp_url="http://127.0.0.1:9243")
+    browser_config = BrowserConfig(browser_mode="cdp", cdp_url="http://127.0.0.1:9243")
    run_config = CrawlerRunConfig()

    async with AsyncWebCrawler(config=browser_config) as crawler:
@@ -228,7 +228,7 @@ def main():
    print()
    print("Launching stealth browser...", flush=True)

-    browser = launch(headless=not HEADED, proxy=PROXY)
+    browser = launch(headless=not HEADED, proxy=PROXY, geoip=True)
    page = browser.new_page()

    # Show browser fingerprint details
@@ -11,7 +11,7 @@

 Drop-in Playwright/Puppeteer replacement. Same API, same code — just swap the import. **3 lines of code, 30 seconds to unblock.**

- **33 source-level C++ patches** — canvas, WebGL, audio, fonts, GPU, screen, automation signals
+- **48 source-level C++ patches** — canvas, WebGL, audio, fonts, GPU, screen, WebRTC, network timing, automation signals
 - **0.9 reCAPTCHA v3 score** — human-level, server-verified
 - **Passes Cloudflare Turnstile**, FingerprintJS, BrowserScan — tested against 30+ detection sites
 - **`npm install cloakbrowser`** — binary auto-downloads, auto-updates, zero config
@@ -203,11 +203,11 @@ const page = await browser.newPage();

 | Platform | Chromium | Patches | Status |
 |---|---|---|---|
-| Linux x86_64 | 145 | 33 | ✅ Latest |
-| Linux arm64 (RPi, Graviton) | 145 | 33 | ✅ Latest |
+| Linux x86_64 | 145 | 48 | ✅ Latest |
+| Linux arm64 (RPi, Graviton) | 145 | 48 | ✅ Latest |
 | macOS arm64 (Apple Silicon) | 145 | 26 | ✅ Latest |
 | macOS x86_64 (Intel) | 145 | 26 | ✅ Latest |
-| Windows x86_64 | 145 | 33 | ✅ Latest |
+| Windows x86_64 | 145 | 48 | ✅ Latest |

 ## Requirements

@@ -1,6 +1,6 @@
 {
  "name": "cloakbrowser",
-  "version": "0.3.19",
+  "version": "0.3.21",
  "description": "Stealth Chromium that passes every bot detection test. Drop-in Playwright/Puppeteer replacement with source-level fingerprint patches.",
  "type": "module",
  "main": "dist/index.js",
@@ -27,10 +27,10 @@ export { WRAPPER_VERSION };
 // CHROMIUM_VERSION is the latest across all platforms (for display/reference).
 // Use getChromiumVersion() for the current platform's actual version.
 // ---------------------------------------------------------------------------
-export const CHROMIUM_VERSION = "145.0.7632.159.8";
+export const CHROMIUM_VERSION = "145.0.7632.159.9";

 export const PLATFORM_CHROMIUM_VERSIONS: Record<string, string> = {
-  "linux-x64": "145.0.7632.159.8",
+  "linux-x64": "145.0.7632.159.9",
  "linux-arm64": "145.0.7632.159.7",
  "darwin-arm64": "145.0.7632.109.2",
  "darwin-x64": "145.0.7632.109.2",
@@ -211,27 +211,16 @@ export function getDefaultStealthArgs(): string[] {

  const base = [
    "--no-sandbox",
-    "--disable-blink-features=AutomationControlled",
    `--fingerprint=${seed}`,
  ];

  if (isMac) {
    // macOS: run as native Mac browser — GPU/UA match natively
-    return [
-      ...base,
-      "--fingerprint-platform=macos",
-      "--fingerprint-gpu-vendor=Google Inc. (Apple)",
-      "--fingerprint-gpu-renderer=ANGLE (Apple, ANGLE Metal Renderer: Apple M3, Unspecified Version)",
-    ];
+    return [...base, "--fingerprint-platform=macos"];
  }

  // Linux/Windows: spoof as Windows desktop
-  // Hardware concurrency, device memory, screen, and window size are
+  // Hardware concurrency, device memory, screen, window size, and GPU are
  // auto-generated by the binary from the seed (v14+).
-  return [
-    ...base,
-    "--fingerprint-platform=windows",
-    "--fingerprint-gpu-vendor=Google Inc. (NVIDIA)",
-    "--fingerprint-gpu-renderer=ANGLE (NVIDIA, NVIDIA GeForce RTX 3070 (0x00002484) Direct3D11 vs_5_0 ps_5_0, D3D11)",
-  ];
+  return [...base, "--fingerprint-platform=windows"];
 }
@@ -44,6 +44,7 @@ export const COUNTRY_LOCALE_MAP: Record<string, string> = {
 export interface GeoResult {
  timezone: string | null;
  locale: string | null;
+  exitIp: string | null;
 }

 /**
@@ -65,12 +66,12 @@ export async function resolveProxyGeo(
  }

  const dbPath = await ensureGeoipDb();
-  if (!dbPath) return { timezone: null, locale: null };
+  if (!dbPath) return { timezone: null, locale: null, exitIp: null };

  // Exit IP (through proxy) is most accurate — gateway DNS may differ from exit
  let ip = await resolveExitIp(proxyUrl);
  if (!ip) ip = await resolveProxyIp(proxyUrl);
-  if (!ip) return { timezone: null, locale: null };
+  if (!ip) return { timezone: null, locale: null, exitIp: null };

  try {
    const buf = fs.readFileSync(dbPath);
@@ -80,9 +81,9 @@ export async function resolveProxyGeo(
    const countryCode: string | null = result?.country?.iso_code ?? null;
    const locale =
      countryCode ? (COUNTRY_LOCALE_MAP[countryCode] ?? null) : null;
-    return { timezone, locale };
+    return { timezone, locale, exitIp: ip };
  } catch {
-    return { timezone: null, locale: null };
+    return { timezone: null, locale: null, exitIp: ip };
  }
 }

@@ -265,20 +266,64 @@ function maybeTriggerUpdate(dbPath: string): void {

 /**
 * Auto-fill timezone/locale from proxy IP when geoip is enabled.
- * Shared by the Playwright and Puppeteer wrappers.
+ * Also returns exitIp as a free bonus (reused for WebRTC spoofing).
 */
 export async function maybeResolveGeoip(
  options: LaunchOptions
-): Promise<{ timezone?: string; locale?: string }> {
+): Promise<{ timezone?: string; locale?: string; exitIp?: string }> {
  if (!options.geoip || !options.proxy) return { timezone: options.timezone, locale: options.locale };
-  if (options.timezone && options.locale) return { timezone: options.timezone, locale: options.locale };

  let proxyUrl = typeof options.proxy === "string" ? options.proxy : options.proxy.server;
  if (!proxyUrl) return { timezone: options.timezone, locale: options.locale };
  proxyUrl = ensureProxyScheme(proxyUrl);
-  const { timezone: geoTz, locale: geoLocale } = await resolveProxyGeo(proxyUrl);
+
+  // When both tz/locale are explicit, still resolve exit IP for WebRTC
+  if (options.timezone && options.locale) {
+    const exitIp = await resolveExitIp(proxyUrl) ?? undefined;
+    return { timezone: options.timezone, locale: options.locale, exitIp };
+  }
+
+  const { timezone: geoTz, locale: geoLocale, exitIp: geoExitIp } = await resolveProxyGeo(proxyUrl);
+  const exitIp = geoExitIp ?? undefined;
  return {
    timezone: options.timezone ?? geoTz ?? undefined,
    locale: options.locale ?? geoLocale ?? undefined,
+    exitIp,
  };
 }
+
+/**
+ * Replace --fingerprint-webrtc-ip=auto with the resolved proxy exit IP.
+ * Returns args unchanged if no ``auto`` value is present.
+ */
+export async function resolveWebrtcArgs(
+  options: LaunchOptions
+): Promise<string[] | undefined> {
+  const args = options.args;
+  if (!args) return args;
+  const idx = args.findIndex(a => a === "--fingerprint-webrtc-ip=auto");
+  if (idx === -1) return args;
+
+  let proxyUrl = typeof options.proxy === "string" ? options.proxy : options.proxy?.server;
+  if (!proxyUrl) {
+    const result = [...args];
+    result.splice(idx, 1);
+    return result;
+  }
+  proxyUrl = ensureProxyScheme(proxyUrl);
+
+  try {
+    const ip = await resolveExitIp(proxyUrl);
+    const result = [...args];
+    if (ip) {
+      result[idx] = `--fingerprint-webrtc-ip=${ip}`;
+    } else {
+      result.splice(idx, 1);
+    }
+    return result;
+  } catch {
+    const result = [...args];
+    result.splice(idx, 1);
+    return result;
+  }
+}
@@ -4,12 +4,17 @@
 * Activated via humanize: true in launch() / launchContext().
 * Patches page methods to use Bezier mouse curves, realistic typing, and smooth scrolling.
 *
+ * Stealth-aware (fixes #110):
+ *   - isInputElement / isSelectorFocused use CDP Isolated Worlds instead of page.evaluate
+ *   - Shift symbol typing uses CDP Input.dispatchKeyEvent for isTrusted=true events
+ *   - Falls back to page.evaluate only when CDP session is unavailable
+ *
 * Patches all interaction methods:
 * click, dblclick, hover, type, fill, check, uncheck, selectOption,
 * press, pressSequentially, tap, dragTo, clear + Frame-level equivalents.
 */

-import type { Browser, BrowserContext, Page, Frame } from 'playwright-core';
+import type { Browser, BrowserContext, Page, Frame, CDPSession } from 'playwright-core';
 import { HumanConfig, resolveConfig, rand, randRange, sleep } from './config.js';
 import { RawMouse, RawKeyboard, humanMove, humanClick, clickTarget, humanIdle } from './mouse.js';
 import { humanType } from './keyboard.js';
@@ -23,13 +28,148 @@ export { scrollToElement } from './scroll.js';
 // --- Platform-aware select-all shortcut (macOS uses Meta, others use Control) ---
 const SELECT_ALL = process.platform === 'darwin' ? 'Meta+a' : 'Control+a';

+
+// ============================================================================
+// CDP Isolated World — stealth DOM evaluation
+// ============================================================================
+
+/**
+ * Manages a CDP isolated execution context for DOM reads.
+ * Produces clean Error.stack traces (no 'eval at evaluate :302:')
+ * and is invisible to querySelector monkey-patches in the main world.
+ *
+ * Context ID is invalidated on navigation and auto-recreated on next call.
+ */
+class StealthEval {
+  private cdp: CDPSession | null = null;
+  private contextId: number | null = null;
+  private page: Page;
+
+  constructor(page: Page) {
+    this.page = page;
+  }
+
+  private async ensureCdp(): Promise<CDPSession> {
+    if (!this.cdp) {
+      this.cdp = await this.page.context().newCDPSession(this.page);
+    }
+    return this.cdp;
+  }
+
+  private async createWorld(): Promise<number> {
+    const cdp = await this.ensureCdp();
+    const tree = await cdp.send('Page.getFrameTree');
+    const frameId = tree.frameTree.frame.id;
+    const result = await cdp.send('Page.createIsolatedWorld', {
+      frameId,
+      worldName: '',
+      grantUniveralAccess: true,
+    });
+    const ctxId = result.executionContextId;
+    this.contextId = ctxId;
+    return ctxId;
+  }
+
+  /**
+   * Evaluate a JS expression in the isolated world.
+   * Auto-recreates the world if the context was invalidated (navigation).
+   * Returns the result value, or undefined on failure.
+   */
+  async evaluate(expression: string): Promise<any> {
+    if (this.contextId === null) {
+      await this.createWorld();
+    }
+
+    for (let attempt = 0; attempt < 2; attempt++) {
+      try {
+        const cdp = await this.ensureCdp();
+        const result = await cdp.send('Runtime.evaluate', {
+          expression,
+          contextId: this.contextId!,
+          returnByValue: true,
+        });
+
+        if (result.exceptionDetails) {
+          // Context was likely invalidated by navigation
+          if (attempt === 0) {
+            await this.createWorld();
+            continue;
+          }
+          return undefined;
+        }
+
+        return result.result?.value;
+      } catch {
+        if (attempt === 0) {
+          this.contextId = null;
+          try {
+            await this.createWorld();
+          } catch {
+            return undefined;
+          }
+          continue;
+        }
+        return undefined;
+      }
+    }
+    return undefined;
+  }
+
+  /** Mark context as stale — call after navigation. */
+  invalidate(): void {
+    this.contextId = null;
+  }
+
+  /** Get the underlying CDP session (reused for Input.dispatchKeyEvent etc.). */
+  async getCdpSession(): Promise<CDPSession> {
+    return this.ensureCdp();
+  }
+}
+
+
+// ============================================================================
+// Cursor state
+// ============================================================================
+
 class CursorState {
  x = 0;
  y = 0;
  initialized = false;
 }

-async function isInputElement(page: Page, selector: string): Promise<boolean> {
+
+// ============================================================================
+// Stealth DOM queries — isolated world with evaluate fallback
+// ============================================================================
+
+/**
+ * Check if selector matches an input/textarea/contenteditable element.
+ * Uses CDP Isolated World when available — invisible to main world.
+ */
+async function isInputElement(
+  stealth: StealthEval | null,
+  page: Page,
+  selector: string,
+): Promise<boolean> {
+  if (stealth) {
+    try {
+      const escaped = JSON.stringify(selector);
+      const result = await stealth.evaluate(`
+        (() => {
+          const el = document.querySelector(${escaped});
+          if (!el) return false;
+          const tag = el.tagName.toLowerCase();
+          return tag === 'input' || tag === 'textarea'
+            || el.getAttribute('contenteditable') === 'true';
+        })()
+      `);
+      return !!result;
+    } catch {
+      // Fall through to page.evaluate
+    }
+  }
+
+  // Fallback: page.evaluate (detectable — should only happen if CDP fails)
  return page.evaluate((sel: string) => {
    const el = document.querySelector(sel);
    if (!el) return false;
@@ -39,13 +179,37 @@ async function isInputElement(page: Page, selector: string): Promise<boolean> {
  }, selector).catch(() => false);
 }

-async function isSelectorFocused(page: Page, selector: string): Promise<boolean> {
+/**
+ * Check if the element matching selector is currently focused.
+ * Uses CDP Isolated World when available — invisible to main world.
+ */
+async function isSelectorFocused(
+  stealth: StealthEval | null,
+  page: Page,
+  selector: string,
+): Promise<boolean> {
+  if (stealth) {
+    try {
+      const escaped = JSON.stringify(selector);
+      const result = await stealth.evaluate(`
+        (() => {
+          const el = document.querySelector(${escaped});
+          return el === document.activeElement;
+        })()
+      `);
+      return !!result;
+    } catch {
+      // Fall through to page.evaluate
+    }
+  }
+
  return page.evaluate((sel: string) => {
    const el = document.querySelector(sel);
    return el === document.activeElement;
  }, selector).catch(() => false);
 }

+
 // ============================================================================
 // Page-level patching
 // ============================================================================
@@ -82,6 +246,21 @@ function patchPage(page: Page, cfg: HumanConfig, cursor: CursorState): void {
  (page as any)._original = originals;
  (page as any)._humanCfg = cfg;

+  // --- Stealth infrastructure ---
+  const stealth = new StealthEval(page);
+  (page as any)._stealth = stealth;
+
+  // CDP session for shift symbol typing (lazy-initialized, reuses stealth's session)
+  let cdpSession: CDPSession | null = null;
+  const ensureCdp = async (): Promise<CDPSession | null> => {
+    if (!cdpSession) {
+      try {
+        cdpSession = await stealth.getCdpSession();
+      } catch {}
+    }
+    return cdpSession;
+  };
+
  const raw: RawMouse = {
    move: originals.mouseMove,
    down: originals.mouseDown,
@@ -105,11 +284,11 @@ function patchPage(page: Page, cfg: HumanConfig, cursor: CursorState): void {
    }
  }

-  // --- goto ---
+  // --- goto (invalidate isolated world on navigation) ---
  const humanGoto = async (url: string, options?: any) => {
    const response = await originals.goto(url, options);
-    // Patch any new frames after navigation
-    patchFrames(page, cfg, cursor, raw, rawKb, originals);
+    stealth.invalidate();
+    patchFrames(page, cfg, cursor, raw, rawKb, originals, stealth);
    return response;
  };

@@ -122,7 +301,7 @@ function patchPage(page: Page, cfg: HumanConfig, cursor: CursorState): void {
    const { box, cursorX, cursorY } = await scrollToElement(page, raw, selector, cursor.x, cursor.y, cfg);
    cursor.x = cursorX;
    cursor.y = cursorY;
-    const isInput = await isInputElement(page, selector);
+    const isInput = await isInputElement(stealth, page, selector);
    const target = clickTarget(box, isInput, cfg);
    await humanMove(raw, cursor.x, cursor.y, target.x, target.y, cfg);
    cursor.x = target.x;
@@ -139,7 +318,7 @@ function patchPage(page: Page, cfg: HumanConfig, cursor: CursorState): void {
    const { box, cursorX, cursorY } = await scrollToElement(page, raw, selector, cursor.x, cursor.y, cfg);
    cursor.x = cursorX;
    cursor.y = cursorY;
-    const isInput = await isInputElement(page, selector);
+    const isInput = await isInputElement(stealth, page, selector);
    const target = clickTarget(box, isInput, cfg);
    await humanMove(raw, cursor.x, cursor.y, target.x, target.y, cfg);
    cursor.x = target.x;
@@ -169,7 +348,8 @@ function patchPage(page: Page, cfg: HumanConfig, cursor: CursorState): void {
    await sleep(randRange(cfg.field_switch_delay));
    await humanClickFn(selector);
    await sleep(rand(100, 250));
-    await humanType(page, rawKb, text, cfg);
+    const cdp = await ensureCdp();
+    await humanType(page, rawKb, text, cfg, cdp);
  };

  // --- fill (clears existing content first) ---
@@ -181,12 +361,13 @@ function patchPage(page: Page, cfg: HumanConfig, cursor: CursorState): void {
    await sleep(rand(30, 80));
    await originals.keyboardPress('Backspace');
    await sleep(rand(50, 150));
-    await humanType(page, rawKb, value, cfg);
+    const cdp = await ensureCdp();
+    await humanType(page, rawKb, value, cfg, cdp);
  };

  // --- clear ---
  const humanClearFn = async (selector: string, options?: any) => {
-    if (!await isSelectorFocused(page, selector)) {
+    if (!await isSelectorFocused(stealth, page, selector)) {
      await humanClickFn(selector);
    }
    await sleep(rand(50, 150));
@@ -226,7 +407,7 @@ function patchPage(page: Page, cfg: HumanConfig, cursor: CursorState): void {

  // --- press (checks focus first — avoids redundant mouse moves) ---
  const humanPressFn = async (selector: string, key: string, options?: any) => {
-    if (!await isSelectorFocused(page, selector)) {
+    if (!await isSelectorFocused(stealth, page, selector)) {
      await humanClickFn(selector);
    }
    await sleep(rand(50, 150));
@@ -235,11 +416,12 @@ function patchPage(page: Page, cfg: HumanConfig, cursor: CursorState): void {

  // --- pressSequentially ---
  const humanPressSequentiallyFn = async (selector: string, text: string, options?: any) => {
-    if (!await isSelectorFocused(page, selector)) {
+    if (!await isSelectorFocused(stealth, page, selector)) {
      await humanClickFn(selector);
    }
    await sleep(rand(100, 250));
-    await humanType(page, rawKb, text, cfg);
+    const cdp = await ensureCdp();
+    await humanType(page, rawKb, text, cfg, cdp);
  };

  // --- tap ---
@@ -277,7 +459,8 @@ function patchPage(page: Page, cfg: HumanConfig, cursor: CursorState): void {

  // --- keyboard patches ---
  page.keyboard.type = async (text: string, options?: any) => {
-    await humanType(page, rawKb, text, cfg);
+    const cdp = await ensureCdp();
+    await humanType(page, rawKb, text, cfg, cdp);
  };

  // Store helpers for frame patching
@@ -301,7 +484,7 @@ function patchPage(page: Page, cfg: HumanConfig, cursor: CursorState): void {
  }).catch(() => {});

  // --- Patch Frame-level methods (for sub-frames) ---
-  patchFrames(page, cfg, cursor, raw, rawKb, originals);
+  patchFrames(page, cfg, cursor, raw, rawKb, originals, stealth);
 }


@@ -321,13 +504,20 @@ function patchFrames(
  raw: RawMouse,
  rawKb: RawKeyboard,
  originals: any,
+  stealth: StealthEval,
 ): void {
  for (const frame of iterFrames(page)) {
-    patchSingleFrame(frame, page, cfg, originals);
+    patchSingleFrame(frame, page, cfg, originals, stealth);
  }
 }

-function patchSingleFrame(frame: Frame, page: Page, cfg: HumanConfig, originals: any): void {
+function patchSingleFrame(
+  frame: Frame,
+  page: Page,
+  cfg: HumanConfig,
+  originals: any,
+  stealth: StealthEval,
+): void {
  if ((frame as any)._humanPatched) return;
  (frame as any)._humanPatched = true;

@@ -374,7 +564,7 @@ function patchSingleFrame(frame: Frame, page: Page, cfg: HumanConfig, originals:
  };

  (frame as any).clear = async (selector: string, options?: any) => {
-    if (!await isSelectorFocused(page, selector)) {
+    if (!await isSelectorFocused(stealth, page, selector)) {
      await (page as any).click(selector);
    }
    await sleep(rand(50, 150));
@@ -1,8 +1,12 @@
 /**
 * cloakbrowser-human — Human-like keyboard input.
+ *
+ * Stealth-aware: when a CDPSession is provided, shift symbols are typed
+ * via CDP Input.dispatchKeyEvent (isTrusted=true, no evaluate stack trace).
+ * Falls back to page.evaluate when no CDPSession is available.
 */

-import type { Page } from 'playwright-core';
+import type { Page, CDPSession } from 'playwright-core';
 import { RawKeyboard } from './mouse.js';
 import { HumanConfig, rand, randRange, sleep } from './config.js';

@@ -22,6 +26,31 @@ const NEARBY_KEYS: Record<string, string> = {
  '6': '57ty', '7': '68yu', '8': '79ui', '9': '80io', '0': '9p',
 };

+/**
+ * CDP key code for each shift symbol's physical key.
+ * Used by Input.dispatchKeyEvent to produce isTrusted=true events.
+ */
+const SHIFT_SYMBOL_CODES: Record<string, string> = {
+  '!': 'Digit1', '@': 'Digit2', '#': 'Digit3', '$': 'Digit4',
+  '%': 'Digit5', '^': 'Digit6', '&': 'Digit7', '*': 'Digit8',
+  '(': 'Digit9', ')': 'Digit0', '_': 'Minus', '+': 'Equal',
+  '{': 'BracketLeft', '}': 'BracketRight', '|': 'Backslash',
+  ':': 'Semicolon', '"': 'Quote', '<': 'Comma', '>': 'Period',
+  '?': 'Slash', '~': 'Backquote',
+};
+
+/**
+ * Windows virtual key codes for shift symbols.
+ * Input.dispatchKeyEvent uses these to match real keyboard behavior.
+ */
+const SHIFT_SYMBOL_KEYCODES: Record<string, number> = {
+  '!': 49, '@': 50, '#': 51, '$': 52, '%': 53,
+  '^': 54, '&': 55, '*': 56, '(': 57, ')': 48,
+  '_': 189, '+': 187, '{': 219, '}': 221, '|': 220,
+  ':': 186, '"': 222, '<': 188, '>': 190, '?': 191,
+  '~': 192,
+};
+
 function isAscii(ch: string): boolean {
  const code = ch.codePointAt(0);
  return code !== undefined && code < 128;
@@ -37,11 +66,24 @@ function getNearbyKey(ch: string): string {
  return ch;
 }

+function isUpperCase(ch: string): boolean {
+  return ch.length === 1 && ch >= 'A' && ch <= 'Z';
+}
+
+/**
+ * Type text with human-like per-character timing, mistype simulation,
+ * and realistic shift handling.
+ *
+ * @param cdpSession - If provided, shift symbols use CDP Input.dispatchKeyEvent
+ *   producing isTrusted=true events with no evaluate stack trace.
+ *   If null/undefined, falls back to page.evaluate (detectable).
+ */
 export async function humanType(
  page: Page,
  raw: RawKeyboard,
  text: string,
  cfg: HumanConfig,
+  cdpSession?: CDPSession | null,
 ): Promise<void> {
  const chars = [...text]; // Handle emoji surrogate pairs correctly

@@ -72,7 +114,7 @@ export async function humanType(
    if (isUpperCase(ch)) {
      await typeShiftedChar(raw, ch, cfg);
    } else if (SHIFT_SYMBOLS.has(ch)) {
-      await typeShiftSymbol(page, raw, ch, cfg);
+      await typeShiftSymbol(page, raw, ch, cfg, cdpSession);
    } else {
      await typeNormalChar(raw, ch, cfg);
    }
@@ -99,23 +141,67 @@ async function typeShiftedChar(raw: RawKeyboard, ch: string, cfg: HumanConfig):
  await raw.up('Shift');
 }

-async function typeShiftSymbol(page: Page, raw: RawKeyboard, ch: string, cfg: HumanConfig): Promise<void> {
-  await raw.down('Shift');
-  await sleep(randRange(cfg.shift_down_delay));
-  await raw.insertText(ch);
-  await page.evaluate((key: string) => {
-    const el = document.activeElement;
-    if (el) {
-      el.dispatchEvent(new KeyboardEvent('keydown', { key, bubbles: true }));
-      el.dispatchEvent(new KeyboardEvent('keyup', { key, bubbles: true }));
-    }
-  }, ch);
-  await sleep(randRange(cfg.shift_up_delay));
-  await raw.up('Shift');
-}
+/**
+ * Type a shift symbol character.
+ *
+ * Stealth path (cdpSession provided):
+ *   Uses CDP Input.dispatchKeyEvent → isTrusted=true, clean stack.
+ *
+ * Fallback path (no cdpSession):
+ *   Uses raw.insertText + page.evaluate to dispatch synthetic KeyboardEvent.
+ *   Detectable via isTrusted=false and evaluate stack frame.
+ */
+async function typeShiftSymbol(
+  page: Page,
+  raw: RawKeyboard,
+  ch: string,
+  cfg: HumanConfig,
+  cdpSession?: CDPSession | null,
+): Promise<void> {
+  if (cdpSession) {
+    // --- Stealth path: CDP Input.dispatchKeyEvent ---
+    const code = SHIFT_SYMBOL_CODES[ch] || '';
+    const keyCode = SHIFT_SYMBOL_KEYCODES[ch] || 0;

-function isUpperCase(ch: string): boolean {
-  return ch.length === 1 && ch >= 'A' && ch <= 'Z';
+    await raw.down('Shift');
+    await sleep(randRange(cfg.shift_down_delay));
+
+    await cdpSession.send('Input.dispatchKeyEvent', {
+      type: 'keyDown',
+      modifiers: 8, // Shift modifier flag
+      key: ch,
+      code,
+      windowsVirtualKeyCode: keyCode,
+      text: ch,
+      unmodifiedText: ch,
+    });
+    await sleep(randRange(cfg.key_hold));
+
+    await cdpSession.send('Input.dispatchKeyEvent', {
+      type: 'keyUp',
+      modifiers: 8,
+      key: ch,
+      code,
+      windowsVirtualKeyCode: keyCode,
+    });
+
+    await sleep(randRange(cfg.shift_up_delay));
+    await raw.up('Shift');
+  } else {
+    // --- Fallback path: page.evaluate (detectable) ---
+    await raw.down('Shift');
+    await sleep(randRange(cfg.shift_down_delay));
+    await raw.insertText(ch);
+    await page.evaluate((key: string) => {
+      const el = document.activeElement;
+      if (el) {
+        el.dispatchEvent(new KeyboardEvent('keydown', { key, bubbles: true }));
+        el.dispatchEvent(new KeyboardEvent('keyup', { key, bubbles: true }));
+      }
+    }, ch);
+    await sleep(randRange(cfg.shift_up_delay));
+    await raw.up('Shift');
+  }
 }

 async function interCharDelay(cfg: HumanConfig): Promise<void> {
@@ -9,7 +9,7 @@ import { DEFAULT_VIEWPORT, IGNORE_DEFAULT_ARGS } from "./config.js";
 import { buildArgs } from "./args.js";
 import { ensureBinary } from "./download.js";
 import { parseProxyUrl } from "./proxy.js";
-import { maybeResolveGeoip } from "./geoip.js";
+import { maybeResolveGeoip, resolveWebrtcArgs } from "./geoip.js";

 /** @internal Accept both timezone and timezoneId — either works, no warning. Exported for testing. */
 export function resolveTimezone<T extends { timezone?: string; timezoneId?: string }>(options: T): T {
@@ -38,8 +38,12 @@ export async function launch(options: LaunchOptions = {}): Promise<Browser> {
  const { chromium } = await import("playwright-core");

  const binaryPath = process.env.CLOAKBROWSER_BINARY_PATH || (await ensureBinary());
-  const resolved = await maybeResolveGeoip(options);
-  const args = buildArgs({ ...options, ...resolved });
+  const { exitIp, ...resolved } = await maybeResolveGeoip(options);
+  let resolvedArgs = await resolveWebrtcArgs(options);
+  if (exitIp && !(resolvedArgs ?? []).some(a => a.startsWith("--fingerprint-webrtc-ip"))) {
+    resolvedArgs = [...(resolvedArgs ?? []), `--fingerprint-webrtc-ip=${exitIp}`];
+  }
+  const args = buildArgs({ ...options, ...resolved, args: resolvedArgs });

  const browser = await chromium.launch({
    executablePath: binaryPath,
@@ -87,17 +91,22 @@ export async function launchContext(
 ): Promise<BrowserContext> {
  options = resolveTimezone(options);
  // Resolve geoip BEFORE launch() to avoid double-resolution
-  const resolved = await maybeResolveGeoip(options);
+  const { exitIp, ...resolved } = await maybeResolveGeoip(options);
+  let launchArgs = await resolveWebrtcArgs(options);
+  // Inject geoip exit IP for WebRTC spoofing (free — no extra HTTP call)
+  if (exitIp && !(launchArgs ?? []).some(a => a.startsWith("--fingerprint-webrtc-ip"))) {
+    launchArgs = [...(launchArgs ?? []), `--fingerprint-webrtc-ip=${exitIp}`];
+  }
  // --fingerprint-timezone is process-wide (reads CommandLine in renderer),
  // so it applies to ALL contexts, not just the default one.
  // locale and timezone are set via binary flags only — no CDP emulation.
-  const browser = await launch({ ...options, ...resolved, geoip: false });
+  const browser = await launch({ ...options, ...resolved, args: launchArgs, geoip: false });

  let context: BrowserContext;
  try {
    context = await browser.newContext({
      ...(options.userAgent ? { userAgent: options.userAgent } : {}),
-      viewport: options.viewport ?? DEFAULT_VIEWPORT,
+      viewport: options.viewport === undefined ? DEFAULT_VIEWPORT : options.viewport,
      ...(options.colorScheme ? { colorScheme: options.colorScheme } : {}),
    });
  } catch (err) {
@@ -154,8 +163,12 @@ export async function launchPersistentContext(
  const { chromium } = await import("playwright-core");

  const binaryPath = process.env.CLOAKBROWSER_BINARY_PATH || (await ensureBinary());
-  const resolved = await maybeResolveGeoip(options);
-  const args = buildArgs({ ...options, ...resolved });
+  const { exitIp, ...resolved } = await maybeResolveGeoip(options);
+  let resolvedArgs = await resolveWebrtcArgs(options);
+  if (exitIp && !(resolvedArgs ?? []).some(a => a.startsWith("--fingerprint-webrtc-ip"))) {
+    resolvedArgs = [...(resolvedArgs ?? []), `--fingerprint-webrtc-ip=${exitIp}`];
+  }
+  const args = buildArgs({ ...options, ...resolved, args: resolvedArgs });

  // locale and timezone are set via binary flags (--lang, --fingerprint-timezone)
  // — NOT via Playwright context kwargs which use detectable CDP emulation.
@@ -168,7 +181,7 @@ export async function launchPersistentContext(
      ? { proxy: typeof options.proxy === "string" ? parseProxyUrl(options.proxy) : options.proxy }
      : {}),
    ...(options.userAgent ? { userAgent: options.userAgent } : {}),
-    viewport: options.viewport ?? DEFAULT_VIEWPORT,
+    viewport: options.viewport === undefined ? DEFAULT_VIEWPORT : options.viewport,
    ...(options.colorScheme ? { colorScheme: options.colorScheme } : {}),
    ...options.launchOptions,
  });
@@ -9,7 +9,7 @@ import { IGNORE_DEFAULT_ARGS } from "./config.js";
 import { buildArgs } from "./args.js";
 import { ensureBinary } from "./download.js";
 import { parseProxyUrl } from "./proxy.js";
-import { maybeResolveGeoip } from "./geoip.js";
+import { maybeResolveGeoip, resolveWebrtcArgs } from "./geoip.js";

 /**
 * Launch stealth Chromium browser via Puppeteer.
@@ -28,8 +28,12 @@ export async function launch(options: LaunchOptions = {}): Promise<Browser> {
  const puppeteer = await import("puppeteer-core");

  const binaryPath = process.env.CLOAKBROWSER_BINARY_PATH || (await ensureBinary());
-  const resolved = await maybeResolveGeoip(options);
-  const args = buildArgs({ ...options, ...resolved });
+  const { exitIp, ...resolved } = (await maybeResolveGeoip(options)) ?? {};
+  let resolvedArgs = (await resolveWebrtcArgs(options)) ?? options.args;
+  if (exitIp && !(resolvedArgs ?? []).some(a => a.startsWith("--fingerprint-webrtc-ip"))) {
+    resolvedArgs = [...(resolvedArgs ?? []), `--fingerprint-webrtc-ip=${exitIp}`];
+  }
+  const args = buildArgs({ ...options, ...resolved, args: resolvedArgs });

  // Puppeteer handles proxy via CLI args, not a separate option.
  // Chromium's --proxy-server does NOT support inline credentials,
@@ -36,7 +36,7 @@ export interface LaunchContextOptions extends LaunchOptions {
  /** Custom user agent string. */
  userAgent?: string;
  /** Viewport size. */
-  viewport?: { width: number; height: number };
+  viewport?: { width: number; height: number } | null;
  /** Browser locale, e.g. "en-US". */
  locale?: string;
  /** IANA timezone — alias for `timezone`. Either works. */
@@ -21,16 +21,17 @@ describe("config", () => {
    const isMac = process.platform === "darwin";

    expect(args).toContain("--no-sandbox");
-    expect(args).toContain("--disable-blink-features=AutomationControlled");

    if (isMac) {
      expect(args).toContain("--fingerprint-platform=macos");
-      // macOS: no hardware-concurrency or GPU spoofing (uses native values)
-      expect(args.some((a) => a.includes("hardware-concurrency"))).toBe(false);
    } else {
      expect(args).toContain("--fingerprint-platform=windows");
    }

+    // GPU flags removed — binary auto-generates from seed + platform
+    expect(args.some((a) => a.includes("fingerprint-gpu-vendor"))).toBe(false);
+    expect(args.some((a) => a.includes("fingerprint-gpu-renderer"))).toBe(false);
+
    // Should have a random fingerprint seed
    const fingerprintArg = args.find((a) => a.startsWith("--fingerprint="));
    expect(fingerprintArg).toBeDefined();
@@ -182,6 +183,18 @@ describe("buildArgs deduplication", () => {
  });
 });

+describe("buildArgs webrtc IP", () => {
+  it("passes --fingerprint-webrtc-ip from args", () => {
+    const args = _buildArgsForTest({ args: ["--fingerprint-webrtc-ip=1.2.3.4"] });
+    expect(args).toContain("--fingerprint-webrtc-ip=1.2.3.4");
+  });
+
+  it("does not inject when not in args", () => {
+    const args = _buildArgsForTest({});
+    expect(args.some(a => a.startsWith("--fingerprint-webrtc-ip"))).toBe(false);
+  });
+});
+
 describe("resolveTimezone alias", () => {
  it("resolves timezoneId to timezone", () => {
    const result = resolveTimezone({ timezoneId: "Europe/Paris" });
@@ -14,6 +14,7 @@ vi.mock("../src/download.js", () => ({
 vi.mock("../src/geoip.js", () => ({
  resolveProxyGeo: vi.fn().mockResolvedValue({ timezone: null, locale: null }),
  maybeResolveGeoip: vi.fn().mockResolvedValue({}),
+  resolveWebrtcArgs: vi.fn().mockImplementation((opts: any) => Promise.resolve(opts.args)),
 }));

 describe("puppeteer launch", () => {
@@ -56,6 +56,7 @@ dependencies = [
 [project.optional-dependencies]
 geoip = ["geoip2>=4.0"]
 patchright = ["patchright>=1.40"]
+serve = ["aiohttp>=3.9", "websockets>=12.0"]
 dev = ["pytest>=7.0", "pytest-asyncio>=0.23"]

 [project.scripts]
@@ -1,24 +1,24 @@
-"""Unit tests for _build_args timezone/locale injection and timezone alias."""
+"""Unit tests for build_args timezone/locale injection and timezone alias."""

-from cloakbrowser.browser import _build_args, _resolve_timezone
+from cloakbrowser.browser import build_args, _resolve_timezone


 def test_timezone_injected():
    """--fingerprint-timezone flag should appear when timezone is set."""
-    args = _build_args(stealth_args=True, extra_args=None, timezone="America/New_York")
+    args = build_args(stealth_args=True, extra_args=None, timezone="America/New_York")
    assert "--fingerprint-timezone=America/New_York" in args


 def test_locale_injected():
    """--lang and --fingerprint-locale flags should appear when locale is set."""
-    args = _build_args(stealth_args=True, extra_args=None, locale="en-US")
+    args = build_args(stealth_args=True, extra_args=None, locale="en-US")
    assert "--lang=en-US" in args
    assert "--fingerprint-locale=en-US" in args


 def test_both_injected():
    """Both flags should appear when both are set."""
-    args = _build_args(stealth_args=True, extra_args=None, timezone="Europe/Berlin", locale="de-DE")
+    args = build_args(stealth_args=True, extra_args=None, timezone="Europe/Berlin", locale="de-DE")
    assert "--fingerprint-timezone=Europe/Berlin" in args
    assert "--lang=de-DE" in args
    assert "--fingerprint-locale=de-DE" in args
@@ -26,7 +26,7 @@ def test_both_injected():

 def test_timezone_independent_of_stealth_args():
    """--fingerprint-timezone should be injected even when stealth_args=False."""
-    args = _build_args(stealth_args=False, extra_args=None, timezone="America/New_York", locale="en-US")
+    args = build_args(stealth_args=False, extra_args=None, timezone="America/New_York", locale="en-US")
    assert "--fingerprint-timezone=America/New_York" in args
    assert "--lang=en-US" in args
    assert "--fingerprint-locale=en-US" in args
@@ -36,7 +36,7 @@ def test_timezone_independent_of_stealth_args():

 def test_no_flags_when_not_set():
    """No timezone/lang/fingerprint-locale flags when params are None."""
-    args = _build_args(stealth_args=True, extra_args=None)
+    args = build_args(stealth_args=True, extra_args=None)
    assert not any(a.startswith("--fingerprint-timezone=") for a in args)
    assert not any(a.startswith("--lang=") for a in args)
    assert not any(a.startswith("--fingerprint-locale=") for a in args)
@@ -44,7 +44,7 @@ def test_no_flags_when_not_set():

 def test_extra_args_preserved():
    """Extra args should still be included alongside timezone/locale."""
-    args = _build_args(stealth_args=True, extra_args=["--disable-gpu"], timezone="Asia/Tokyo", locale="ja-JP")
+    args = build_args(stealth_args=True, extra_args=["--disable-gpu"], timezone="Asia/Tokyo", locale="ja-JP")
    assert "--disable-gpu" in args
    assert "--fingerprint-timezone=Asia/Tokyo" in args
    assert "--lang=ja-JP" in args
@@ -90,7 +90,7 @@ def test_resolve_both_none():

 def test_user_fingerprint_overrides_default():
    """User --fingerprint should override the random default seed."""
-    args = _build_args(stealth_args=True, extra_args=["--fingerprint=99887"])
+    args = build_args(stealth_args=True, extra_args=["--fingerprint=99887"])
    fingerprint_args = [a for a in args if a.startswith("--fingerprint=")]
    assert len(fingerprint_args) == 1
    assert fingerprint_args[0] == "--fingerprint=99887"
@@ -98,7 +98,7 @@ def test_user_fingerprint_overrides_default():

 def test_user_platform_overrides_default():
    """User --fingerprint-platform should override the default."""
-    args = _build_args(stealth_args=True, extra_args=["--fingerprint-platform=linux"])
+    args = build_args(stealth_args=True, extra_args=["--fingerprint-platform=linux"])
    platform_args = [a for a in args if a.startswith("--fingerprint-platform=")]
    assert len(platform_args) == 1
    assert platform_args[0] == "--fingerprint-platform=linux"
@@ -106,7 +106,7 @@ def test_user_platform_overrides_default():

 def test_timezone_param_overrides_user_arg():
    """Dedicated timezone param should override user arg."""
-    args = _build_args(
+    args = build_args(
        stealth_args=True,
        extra_args=["--fingerprint-timezone=Europe/London"],
        timezone="America/New_York",
@@ -118,7 +118,7 @@ def test_timezone_param_overrides_user_arg():

 def test_locale_param_overrides_user_arg():
    """Dedicated locale param should override user --lang and --fingerprint-locale args."""
-    args = _build_args(
+    args = build_args(
        stealth_args=True,
        extra_args=["--lang=de-DE", "--fingerprint-locale=de-DE"],
        locale="en-US",
@@ -133,7 +133,7 @@ def test_locale_param_overrides_user_arg():

 def test_no_duplicate_flags():
    """No flag key should appear more than once in the output."""
-    args = _build_args(
+    args = build_args(
        stealth_args=True,
        extra_args=["--fingerprint=99887", "--fingerprint-timezone=UTC", "--lang=fr-FR"],
        timezone="Europe/Berlin",
@@ -145,7 +145,7 @@ def test_no_duplicate_flags():

 def test_non_value_flags_preserved():
    """Flags without = should be preserved without dedup issues."""
-    args = _build_args(stealth_args=True, extra_args=["--disable-gpu", "--no-zygote"])
+    args = build_args(stealth_args=True, extra_args=["--disable-gpu", "--no-zygote"])
    assert "--disable-gpu" in args
    assert "--no-zygote" in args
    assert "--no-sandbox" in args
@@ -156,5 +156,46 @@ def test_override_logs_debug(caplog):
    import logging

    with caplog.at_level(logging.DEBUG, logger="cloakbrowser"):
-        _build_args(stealth_args=True, extra_args=["--fingerprint=99887"])
+        build_args(stealth_args=True, extra_args=["--fingerprint=99887"])
    assert any("--fingerprint=" in r.message and "99887" in r.message for r in caplog.records)
+
+
+# --- WebRTC IP spoofing ---
+
+
+def test_webrtc_ip_passed_through_args():
+    """--fingerprint-webrtc-ip in args should pass through to output."""
+    args = build_args(stealth_args=True, extra_args=["--fingerprint-webrtc-ip=1.2.3.4"])
+    assert "--fingerprint-webrtc-ip=1.2.3.4" in args
+
+
+def test_webrtc_ip_not_present_by_default():
+    """No --fingerprint-webrtc-ip when not in args."""
+    args = build_args(stealth_args=True, extra_args=None)
+    assert not any(a.startswith("--fingerprint-webrtc-ip") for a in args)
+
+
+def test_resolve_webrtc_args_auto():
+    """--fingerprint-webrtc-ip=auto should be resolved to an IP."""
+    from cloakbrowser.browser import _resolve_webrtc_args
+    from unittest.mock import patch
+
+    with patch("cloakbrowser.geoip._resolve_exit_ip", return_value="5.6.7.8"):
+        result = _resolve_webrtc_args(["--fingerprint-webrtc-ip=auto"], "http://proxy:8080")
+    assert result == ["--fingerprint-webrtc-ip=5.6.7.8"]
+
+
+def test_resolve_webrtc_args_explicit_ip_unchanged():
+    """Explicit IP in args should not be touched."""
+    from cloakbrowser.browser import _resolve_webrtc_args
+
+    result = _resolve_webrtc_args(["--fingerprint-webrtc-ip=9.9.9.9"], "http://proxy:8080")
+    assert result == ["--fingerprint-webrtc-ip=9.9.9.9"]
+
+
+def test_resolve_webrtc_args_no_flag():
+    """No webrtc flag in args should return args unchanged."""
+    from cloakbrowser.browser import _resolve_webrtc_args
+
+    result = _resolve_webrtc_args(["--no-sandbox"], "http://proxy:8080")
+    assert result == ["--no-sandbox"]
@@ -0,0 +1,244 @@
+"""Unit tests for cloakserve — parse_connection_params, parse_cli_args, URL rewriting, connection tracking."""
+
+import importlib.machinery
+import importlib.util
+import sys
+from pathlib import Path
+from unittest.mock import patch
+
+import pytest
+
+aiohttp = pytest.importorskip("aiohttp", reason="cloakserve requires aiohttp (install with .[serve])")
+
+# Load cloakserve as a module from bin/ (no .py extension).
+_bin_path = str(Path(__file__).resolve().parents[1] / "bin" / "cloakserve")
+_loader = importlib.machinery.SourceFileLoader("cloakserve", _bin_path)
+_spec = importlib.util.spec_from_file_location("cloakserve", _bin_path, loader=_loader)
+_mod = importlib.util.module_from_spec(_spec)
+sys.modules["cloakserve"] = _mod
+_loader.exec_module(_mod)
+
+parse_connection_params = _mod.parse_connection_params
+parse_cli_args = _mod.parse_cli_args
+ChromePool = _mod.ChromePool
+_default_data_dir = _mod._default_data_dir
+
+
+# ---------------------------------------------------------------------------
+# parse_connection_params
+# ---------------------------------------------------------------------------
+
+
+class TestParseConnectionParams:
+    def test_empty_query(self):
+        result = parse_connection_params("")
+        assert result["seed"] is None
+        assert result["extra_args"] == []
+
+    def test_fingerprint_seed(self):
+        result = parse_connection_params("fingerprint=12345")
+        assert result["seed"] == "12345"
+
+    def test_timezone_and_locale(self):
+        result = parse_connection_params("fingerprint=1&timezone=Asia/Tokyo&locale=ja-JP")
+        assert result["timezone"] == "Asia/Tokyo"
+        assert result["locale"] == "ja-JP"
+
+    def test_proxy(self):
+        result = parse_connection_params("proxy=http://proxy:8080")
+        assert result["proxy"] == "http://proxy:8080"
+
+    def test_geoip_true_variants(self):
+        for val in ("true", "1", "yes", "True", "YES"):
+            result = parse_connection_params(f"geoip={val}")
+            assert result["geoip"] is True, f"geoip={val} should be True"
+
+    def test_geoip_false(self):
+        for val in ("false", "0", "no", "anything"):
+            result = parse_connection_params(f"geoip={val}")
+            assert result["geoip"] is False, f"geoip={val} should be False"
+
+    def test_generic_fingerprint_params(self):
+        qs = "fingerprint=1&platform=windows&hardware-concurrency=8&gpu-vendor=NVIDIA"
+        result = parse_connection_params(qs)
+        assert "--fingerprint-platform=windows" in result["extra_args"]
+        assert "--fingerprint-hardware-concurrency=8" in result["extra_args"]
+        assert "--fingerprint-gpu-vendor=NVIDIA" in result["extra_args"]
+
+    def test_special_params_not_in_extra_args(self):
+        qs = "fingerprint=1&timezone=UTC&locale=en-US&proxy=http://x:1&geoip=true"
+        result = parse_connection_params(qs)
+        assert result["extra_args"] == []
+
+    def test_multiple_values_takes_first(self):
+        result = parse_connection_params("fingerprint=111&fingerprint=222")
+        assert result["seed"] == "111"
+
+
+# ---------------------------------------------------------------------------
+# parse_cli_args
+# ---------------------------------------------------------------------------
+
+
+class TestParseCliArgs:
+    def test_defaults(self):
+        config, passthrough = parse_cli_args([])
+        assert config["port"] == 9222
+        assert config["headless"] is True
+        assert config["data_dir"] is not None
+        assert passthrough == []
+
+    def test_custom_port(self):
+        config, _ = parse_cli_args(["--port=8080"])
+        assert config["port"] == 8080
+
+    def test_headless_false(self):
+        config, passthrough = parse_cli_args(["--headless=false"])
+        assert config["headless"] is False
+        # headless flag still passed through to Chrome
+        assert "--headless=false" in passthrough
+
+    def test_strips_remote_debugging_flags(self):
+        args = ["--remote-debugging-port=9999", "--remote-debugging-address=0.0.0.0", "--no-sandbox"]
+        config, passthrough = parse_cli_args(args)
+        assert passthrough == ["--no-sandbox"]
+
+    def test_passthrough_args(self):
+        args = ["--no-sandbox", "--disable-gpu", "--fingerprint=999"]
+        _, passthrough = parse_cli_args(args)
+        assert passthrough == args
+
+    def test_port_not_in_passthrough(self):
+        _, passthrough = parse_cli_args(["--port=9222", "--no-sandbox"])
+        assert "--port=9222" not in passthrough
+        assert "--no-sandbox" in passthrough
+
+    def test_custom_data_dir(self):
+        config, passthrough = parse_cli_args(["--data-dir=/custom/path", "--no-sandbox"])
+        assert config["data_dir"] == "/custom/path"
+        assert "--data-dir=/custom/path" not in passthrough
+
+    def test_data_dir_not_in_passthrough(self):
+        _, passthrough = parse_cli_args(["--data-dir=/tmp/test"])
+        assert not any(a.startswith("--data-dir=") for a in passthrough)
+
+    @patch("os.path.exists", return_value=True)
+    def test_default_data_dir_docker(self, _mock):
+        assert _default_data_dir() == "/tmp/cloakserve"
+
+    @patch("os.path.exists", return_value=False)
+    def test_default_data_dir_bare_metal(self, _mock):
+        result = _default_data_dir()
+        assert result.endswith(".cloakbrowser/cloakserve")
+
+
+# ---------------------------------------------------------------------------
+# URL rewriting logic (pure string manipulation, extracted from handlers)
+# ---------------------------------------------------------------------------
+
+
+class TestURLRewriting:
+    """Test the URL rewriting logic used by /json/version and /json/list."""
+
+    def _rewrite_version(self, orig_ws: str, host: str, seed: str | None, scheme: str = "ws") -> str:
+        """Replicate the URL rewrite logic from handle_json_version."""
+        if seed:
+            ws_path = f"fingerprint/{seed}/devtools/browser"
+        else:
+            ws_path = "devtools/browser"
+        guid = orig_ws.rsplit("/", 1)[-1] if "/devtools/" in orig_ws else ""
+        return f"{scheme}://{host}/{ws_path}/{guid}"
+
+    def _rewrite_list_entry(self, orig_ws: str, host: str, seed: str | None, scheme: str = "ws") -> str:
+        """Replicate the URL rewrite logic from handle_json_list."""
+        ws_tail = orig_ws.split("/devtools/")[-1]
+        if seed:
+            return f"{scheme}://{host}/fingerprint/{seed}/devtools/{ws_tail}"
+        else:
+            return f"{scheme}://{host}/devtools/{ws_tail}"
+
+    def test_version_rewrite_with_seed(self):
+        orig = "ws://127.0.0.1:5100/devtools/browser/abc-123"
+        result = self._rewrite_version(orig, "container:9222", "12345")
+        assert result == "ws://container:9222/fingerprint/12345/devtools/browser/abc-123"
+
+    def test_version_rewrite_no_seed(self):
+        orig = "ws://127.0.0.1:5100/devtools/browser/abc-123"
+        result = self._rewrite_version(orig, "container:9222", None)
+        assert result == "ws://container:9222/devtools/browser/abc-123"
+
+    def test_list_rewrite_page_with_seed(self):
+        orig = "ws://127.0.0.1:5100/devtools/page/DEF-456"
+        result = self._rewrite_list_entry(orig, "host:9222", "99")
+        assert result == "ws://host:9222/fingerprint/99/devtools/page/DEF-456"
+
+    def test_list_rewrite_page_no_seed(self):
+        orig = "ws://127.0.0.1:5100/devtools/page/DEF-456"
+        result = self._rewrite_list_entry(orig, "host:9222", None)
+        assert result == "ws://host:9222/devtools/page/DEF-456"
+
+    def test_list_rewrite_browser(self):
+        orig = "ws://127.0.0.1:5100/devtools/browser/XYZ"
+        result = self._rewrite_list_entry(orig, "host:9222", "seed1")
+        assert result == "ws://host:9222/fingerprint/seed1/devtools/browser/XYZ"
+
+    def test_wss_scheme_version(self):
+        orig = "ws://127.0.0.1:5100/devtools/browser/abc-123"
+        result = self._rewrite_version(orig, "host:443", "seed1", scheme="wss")
+        assert result == "wss://host:443/fingerprint/seed1/devtools/browser/abc-123"
+
+    def test_wss_scheme_list(self):
+        orig = "ws://127.0.0.1:5100/devtools/page/DEF-456"
+        result = self._rewrite_list_entry(orig, "host:443", "seed1", scheme="wss")
+        assert result == "wss://host:443/fingerprint/seed1/devtools/page/DEF-456"
+
+
+# ---------------------------------------------------------------------------
+# Connection refcounting
+# ---------------------------------------------------------------------------
+
+
+class TestConnectionTracking:
+    """Test ChromePool.connect() / disconnect() without real Chrome."""
+
+    def _make_pool(self):
+        return ChromePool(
+            binary="/fake/chrome",
+            global_args=[],
+            headless=True,
+            data_dir="/tmp/test-cloakserve",
+        )
+
+    def test_connect_increments(self):
+        pool = self._make_pool()
+        pool.connect("seed1")
+        assert pool._connections["seed1"] == 1
+        pool.connect("seed1")
+        assert pool._connections["seed1"] == 2
+
+    def test_disconnect_decrements(self):
+        pool = self._make_pool()
+        pool.connect("seed1")
+        pool.connect("seed1")
+        pool.disconnect("seed1")
+        assert pool._connections["seed1"] == 1
+
+    def test_disconnect_to_zero_removes_key(self):
+        pool = self._make_pool()
+        pool.connect("seed1")
+        pool.disconnect("seed1")
+        assert "seed1" not in pool._connections
+
+    def test_disconnect_below_zero_safe(self):
+        pool = self._make_pool()
+        pool.disconnect("nonexistent")
+        assert "nonexistent" not in pool._connections
+
+    def test_multiple_seeds_independent(self):
+        pool = self._make_pool()
+        pool.connect("a")
+        pool.connect("b")
+        pool.connect("a")
+        pool.disconnect("a")
+        assert pool._connections["a"] == 1
+        assert pool._connections["b"] == 1
@@ -133,10 +133,14 @@ class TestStealthArgs:
        with patch("cloakbrowser.config.platform.system", return_value="Darwin"):
            args = get_default_stealth_args()
            assert "--fingerprint-platform=macos" in args
-            assert any("Apple" in a for a in args)
+            # GPU flags removed — binary auto-generates from seed + platform
+            assert not any("fingerprint-gpu-vendor" in a for a in args)
+            assert not any("fingerprint-gpu-renderer" in a for a in args)

    def test_linux_windows_profile(self):
        with patch("cloakbrowser.config.platform.system", return_value="Linux"):
            args = get_default_stealth_args()
            assert "--fingerprint-platform=windows" in args
-            assert any("NVIDIA" in a for a in args)
+            # GPU flags removed — binary auto-generates from seed + platform
+            assert not any("fingerprint-gpu-vendor" in a for a in args)
+            assert not any("fingerprint-gpu-renderer" in a for a in args)
@@ -4,7 +4,7 @@ from unittest.mock import patch

 import pytest

-from cloakbrowser.browser import _maybe_resolve_geoip
+from cloakbrowser.browser import maybe_resolve_geoip
 from cloakbrowser.geoip import (
    COUNTRY_LOCALE_MAP,
    _is_private_ip,
@@ -92,51 +92,56 @@ def test_resolve_geo_returns_none_when_db_missing():


 # ---------------------------------------------------------------------------
-# _maybe_resolve_geoip (browser.py helper)
+# maybe_resolve_geoip (browser.py helper)
 # ---------------------------------------------------------------------------


 def test_maybe_resolve_skips_when_geoip_false():
-    tz, loc = _maybe_resolve_geoip(False, "http://proxy:8080", None, None)
+    tz, loc, ip = maybe_resolve_geoip(False, "http://proxy:8080", None, None)
    assert tz is None
    assert loc is None
+    assert ip is None


 def test_maybe_resolve_skips_when_no_proxy():
-    tz, loc = _maybe_resolve_geoip(True, None, None, None)
+    tz, loc, ip = maybe_resolve_geoip(True, None, None, None)
    assert tz is None
    assert loc is None
+    assert ip is None


 def test_maybe_resolve_skips_when_both_explicit():
-    """Explicit values should not trigger geoip resolution."""
-    tz, loc = _maybe_resolve_geoip(True, "http://proxy:8080", "Europe/Berlin", "de-DE")
+    """Explicit values should still resolve exit IP for WebRTC."""
+    with patch("cloakbrowser.geoip._resolve_exit_ip", return_value="1.2.3.4"):
+        tz, loc, ip = maybe_resolve_geoip(True, "http://proxy:8080", "Europe/Berlin", "de-DE")
    assert tz == "Europe/Berlin"
    assert loc == "de-DE"
+    assert ip == "1.2.3.4"


 def test_maybe_resolve_fills_missing_timezone():
    """When only locale is explicit, geoip should fill timezone."""
-    with patch("cloakbrowser.geoip.resolve_proxy_geo", return_value=("America/New_York", "en-US")):
-        tz, loc = _maybe_resolve_geoip(True, "http://proxy:8080", None, "fr-FR")
+    with patch("cloakbrowser.geoip.resolve_proxy_geo_with_ip", return_value=("America/New_York", "en-US", "1.2.3.4")):
+        tz, loc, ip = maybe_resolve_geoip(True, "http://proxy:8080", None, "fr-FR")
        assert tz == "America/New_York"
        assert loc == "fr-FR"  # Explicit wins


 def test_maybe_resolve_fills_missing_locale():
    """When only timezone is explicit, geoip should fill locale."""
-    with patch("cloakbrowser.geoip.resolve_proxy_geo", return_value=("America/New_York", "en-US")):
-        tz, loc = _maybe_resolve_geoip(True, "http://proxy:8080", "Asia/Tokyo", None)
+    with patch("cloakbrowser.geoip.resolve_proxy_geo_with_ip", return_value=("America/New_York", "en-US", "1.2.3.4")):
+        tz, loc, ip = maybe_resolve_geoip(True, "http://proxy:8080", "Asia/Tokyo", None)
        assert tz == "Asia/Tokyo"  # Explicit wins
        assert loc == "en-US"


 def test_maybe_resolve_fills_both():
    """When neither is set, geoip should fill both."""
-    with patch("cloakbrowser.geoip.resolve_proxy_geo", return_value=("Europe/Berlin", "de-DE")):
-        tz, loc = _maybe_resolve_geoip(True, "http://proxy:8080", None, None)
+    with patch("cloakbrowser.geoip.resolve_proxy_geo_with_ip", return_value=("Europe/Berlin", "de-DE", "5.6.7.8")):
+        tz, loc, ip = maybe_resolve_geoip(True, "http://proxy:8080", None, None)
        assert tz == "Europe/Berlin"
        assert loc == "de-DE"
+        assert ip == "5.6.7.8"


 # ---------------------------------------------------------------------------
@@ -114,7 +114,7 @@ def test_color_scheme(mock_launch, _mock_bin):
    assert ctx_kwargs[1]["color_scheme"] == "dark"


-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=("Europe/Berlin", "de-DE"))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=("Europe/Berlin", "de-DE", "5.6.7.8"))
@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
@patch("cloakbrowser.browser.launch")
 def test_geoip_resolution(mock_launch, _mock_bin, _mock_geoip):
@@ -26,7 +26,7 @@ def _make_mock_pw_and_context():


@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=(None, None))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=(None, None, None))
 def test_persistent_context_args_built(_mock_geoip, _mock_bin):
    """Stealth args + extra args combined correctly."""
    pw_cm, pw, context = _make_mock_pw_and_context()
@@ -42,7 +42,7 @@ def test_persistent_context_args_built(_mock_geoip, _mock_bin):


@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=(None, None))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=(None, None, None))
 def test_persistent_context_default_viewport(_mock_geoip, _mock_bin):
    """DEFAULT_VIEWPORT applied when no viewport given."""
    pw_cm, pw, context = _make_mock_pw_and_context()
@@ -56,7 +56,7 @@ def test_persistent_context_default_viewport(_mock_geoip, _mock_bin):


@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=(None, None))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=(None, None, None))
 def test_persistent_context_custom_viewport(_mock_geoip, _mock_bin):
    """Custom viewport overrides DEFAULT_VIEWPORT."""
    pw_cm, pw, context = _make_mock_pw_and_context()
@@ -71,7 +71,7 @@ def test_persistent_context_custom_viewport(_mock_geoip, _mock_bin):


@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=(None, None))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=(None, None, None))
 def test_persistent_context_user_agent(_mock_geoip, _mock_bin):
    """user_agent forwarded to launch_persistent_context()."""
    pw_cm, pw, context = _make_mock_pw_and_context()
@@ -103,7 +103,7 @@ def test_persistent_context_locale_and_timezone(_mock_bin):


@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=(None, None))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=(None, None, None))
 def test_persistent_context_color_scheme(_mock_geoip, _mock_bin):
    """color_scheme forwarded correctly."""
    pw_cm, pw, context = _make_mock_pw_and_context()
@@ -116,7 +116,7 @@ def test_persistent_context_color_scheme(_mock_geoip, _mock_bin):
    assert call_kwargs["color_scheme"] == "dark"


-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=("Europe/Berlin", "de-DE"))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=("Europe/Berlin", "de-DE", "5.6.7.8"))
@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
 def test_persistent_context_geoip(_mock_bin, _mock_geoip):
    """geoip fills missing tz/locale — flows to binary args, not CDP context."""
@@ -150,7 +150,7 @@ def test_persistent_context_timezone_id_alias(_mock_bin):


@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=(None, None))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=(None, None, None))
 def test_persistent_context_close_stops_pw(_mock_geoip, _mock_bin):
    """context.close() also calls pw.stop()."""
    pw_cm, pw, context = _make_mock_pw_and_context()
@@ -166,7 +166,7 @@ def test_persistent_context_close_stops_pw(_mock_geoip, _mock_bin):


@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=(None, None))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=(None, None, None))
 def test_persistent_context_proxy_string(_mock_geoip, _mock_bin):
    """Proxy string parsed and passed."""
    pw_cm, pw, context = _make_mock_pw_and_context()
@@ -182,7 +182,7 @@ def test_persistent_context_proxy_string(_mock_geoip, _mock_bin):


@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=(None, None))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=(None, None, None))
 def test_persistent_context_proxy_dict(_mock_geoip, _mock_bin):
    """Proxy dict passed through."""
    pw_cm, pw, context = _make_mock_pw_and_context()
@@ -213,7 +213,7 @@ def _make_mock_async_pw_and_context():

@pytest.mark.asyncio
@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=(None, None))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=(None, None, None))
 async def test_persistent_context_async_args_built(_mock_geoip, _mock_bin):
    """Async launch builds args correctly."""
    pw_cm, pw, context = _make_mock_async_pw_and_context()
@@ -229,7 +229,7 @@ async def test_persistent_context_async_args_built(_mock_geoip, _mock_bin):

@pytest.mark.asyncio
@patch("cloakbrowser.browser.ensure_binary", return_value="/fake/chrome")
-@patch("cloakbrowser.browser._maybe_resolve_geoip", return_value=(None, None))
+@patch("cloakbrowser.browser.maybe_resolve_geoip", return_value=(None, None, None))
 async def test_persistent_context_async_close_stops_pw(_mock_geoip, _mock_bin):
    """await context.close() calls await pw.stop()."""
    pw_cm, pw, context = _make_mock_async_pw_and_context()
@@ -2,7 +2,7 @@

 from unittest.mock import patch

-from cloakbrowser.browser import _build_proxy_kwargs, _maybe_resolve_geoip, _parse_proxy_url
+from cloakbrowser.browser import _build_proxy_kwargs, maybe_resolve_geoip, _parse_proxy_url


 class TestParseProxyUrl:
@@ -68,49 +68,52 @@ class TestBuildProxyKwargs:


 class TestMaybeResolveGeoip:
-    @patch("cloakbrowser.geoip.resolve_proxy_geo", return_value=("America/New_York", "en-US"))
+    @patch("cloakbrowser.geoip.resolve_proxy_geo_with_ip", return_value=("America/New_York", "en-US", "1.2.3.4"))
    def test_geoip_with_string_proxy(self, mock_geo):
-        tz, locale = _maybe_resolve_geoip(True, "http://proxy:8080", None, None)
+        tz, locale, ip = maybe_resolve_geoip(True, "http://proxy:8080", None, None)
        mock_geo.assert_called_once_with("http://proxy:8080")
        assert tz == "America/New_York"
        assert locale == "en-US"
+        assert ip == "1.2.3.4"

-    @patch("cloakbrowser.geoip.resolve_proxy_geo", return_value=("Europe/London", "en-GB"))
+    @patch("cloakbrowser.geoip.resolve_proxy_geo_with_ip", return_value=("Europe/London", "en-GB", "5.6.7.8"))
    def test_geoip_with_dict_proxy_extracts_server(self, mock_geo):
        proxy_dict = {"server": "http://proxy:8080", "bypass": ".google.com"}
-        tz, locale = _maybe_resolve_geoip(True, proxy_dict, None, None)
+        tz, locale, ip = maybe_resolve_geoip(True, proxy_dict, None, None)
        mock_geo.assert_called_once_with("http://proxy:8080")
        assert tz == "Europe/London"
        assert locale == "en-GB"

    def test_geoip_disabled_skips_resolution(self):
-        tz, locale = _maybe_resolve_geoip(False, "http://proxy:8080", None, None)
+        tz, locale, ip = maybe_resolve_geoip(False, "http://proxy:8080", None, None)
        assert tz is None
        assert locale is None
+        assert ip is None

    def test_geoip_no_proxy_skips_resolution(self):
-        tz, locale = _maybe_resolve_geoip(True, None, None, None)
+        tz, locale, ip = maybe_resolve_geoip(True, None, None, None)
        assert tz is None
        assert locale is None
+        assert ip is None

-    @patch("cloakbrowser.geoip.resolve_proxy_geo", return_value=("Asia/Tokyo", "ja-JP"))
+    @patch("cloakbrowser.geoip.resolve_proxy_geo_with_ip", return_value=("Asia/Tokyo", "ja-JP", "9.8.7.6"))
    def test_geoip_preserves_explicit_timezone(self, mock_geo):
-        tz, locale = _maybe_resolve_geoip(True, "http://proxy:8080", "Europe/Berlin", None)
+        tz, locale, _ip = maybe_resolve_geoip(True, "http://proxy:8080", "Europe/Berlin", None)
        assert tz == "Europe/Berlin"
        assert locale == "ja-JP"

-    @patch("cloakbrowser.geoip.resolve_proxy_geo", return_value=("America/New_York", "en-US"))
+    @patch("cloakbrowser.geoip.resolve_proxy_geo_with_ip", return_value=("America/New_York", "en-US", "1.2.3.4"))
    def test_geoip_normalizes_bare_proxy_with_creds(self, mock_geo):
        # "user:pass@host:port" must be normalized to http:// before geoip lookup.
-        tz, locale = _maybe_resolve_geoip(True, "user:pass@proxy:8080", None, None)
+        tz, locale, _ip = maybe_resolve_geoip(True, "user:pass@proxy:8080", None, None)
        mock_geo.assert_called_once_with("http://user:pass@proxy:8080")
        assert tz == "America/New_York"
        assert locale == "en-US"

-    @patch("cloakbrowser.geoip.resolve_proxy_geo", return_value=("America/New_York", "en-US"))
+    @patch("cloakbrowser.geoip.resolve_proxy_geo_with_ip", return_value=("America/New_York", "en-US", "1.2.3.4"))
    def test_geoip_normalizes_schemeless_proxy_no_creds(self, mock_geo):
        # "host:port" (no @ and no scheme) must also be normalized.
-        tz, locale = _maybe_resolve_geoip(True, "proxy:8080", None, None)
+        tz, locale, _ip = maybe_resolve_geoip(True, "proxy:8080", None, None)
        mock_geo.assert_called_once_with("http://proxy:8080")
        assert tz == "America/New_York"

@@ -0,0 +1,168 @@
+# tests/test_stealth_reproduction_110.py
+"""
+Exact reproduction of issue #110 detection vectors.
+Proves all three leaks (isInputElement, isSelectorFocused, typeShiftSymbol)
+are fixed with CDP isolated worlds.
+"""
+import asyncio
+import pytest
+
+@pytest.mark.slow
+class TestIssue110Reproduction:
+
+    @pytest.mark.asyncio
+    async def test_exact_reproduction_from_issue(self):
+        """Exact detection script from issue #110 — must produce zero detections."""
+        from cloakbrowser import launch_async
+
+        browser = await launch_async(headless=True, humanize=True)
+        page = await browser.new_page()
+
+        await page.goto('https://www.wikipedia.org', wait_until='domcontentloaded')
+        await asyncio.sleep(1)
+
+        # === EXACT detection from issue #110 ===
+        await page.evaluate("""
+            () => {
+                window.__detections = {
+                    evaluateQS: [],
+                    untrustedKeydown: []
+                };
+
+                // Detection 1: querySelector from evaluate context
+                const origQS = document.querySelector.bind(document);
+                document.querySelector = function(sel) {
+                    try { throw new Error(); } catch (e) {
+                        if (e.stack.includes(':302:')) {
+                            window.__detections.evaluateQS.push(sel);
+                        }
+                    }
+                    return origQS(sel);
+                };
+
+                // Detection 2: untrusted keyboard events
+                document.addEventListener('keydown', (e) => {
+                    if (!e.isTrusted) {
+                        window.__detections.untrustedKeydown.push(e.key);
+                    }
+                }, true);
+            }
+        """)
+
+        # === Trigger all three vectors from issue ===
+
+        # Vector 1: isInputElement — click triggers querySelector check
+        await page.click('#searchInput')
+        await asyncio.sleep(0.3)
+
+        # Vector 2+3: typeShiftSymbol — type text with shift symbols
+        await page.keyboard.type('Hello!@#$%^&*()')
+        await asyncio.sleep(0.5)
+
+        # === Verify: zero detections ===
+        detections = await page.evaluate('() => window.__detections')
+
+        qs_leaks = detections['evaluateQS']
+        untrusted = detections['untrustedKeydown']
+
+        print(f"\n{'='*60}")
+        print(f"Issue #110 Reproduction Results:")
+        print(f"  querySelector from evaluate: {len(qs_leaks)} detections")
+        print(f"  Untrusted keyboard events:   {len(untrusted)} detections")
+        print(f"{'='*60}")
+
+        assert len(qs_leaks) == 0, (
+            f"LEAK: querySelector called from evaluate context: {qs_leaks}"
+        )
+        assert len(untrusted) == 0, (
+            f"LEAK: Untrusted keyboard events detected: {untrusted}"
+        )
+
+        await browser.close()
+
+    @pytest.mark.asyncio
+    async def test_all_21_shift_symbols_trusted(self):
+        """Every single shift symbol must produce isTrusted=true."""
+        from cloakbrowser import launch_async
+
+        browser = await launch_async(headless=True, humanize=True)
+        page = await browser.new_page()
+
+        await page.goto('https://www.wikipedia.org', wait_until='domcontentloaded')
+        await asyncio.sleep(1)
+
+        await page.evaluate("""
+            () => {
+                window.__keyResults = { trusted: [], untrusted: [] };
+                const input = document.querySelector('#searchInput');
+                input.addEventListener('keydown', (e) => {
+                    const list = e.isTrusted ? 'trusted' : 'untrusted';
+                    window.__keyResults[list].push(e.key);
+                }, true);
+            }
+        """)
+
+        await page.click('#searchInput')
+        await asyncio.sleep(0.3)
+
+        # Type ALL 21 shift symbols
+        all_shift = '!@#$%^&*()_+{}|:"<>?~'
+        await page.keyboard.type(all_shift)
+        await asyncio.sleep(1)
+
+        results = await page.evaluate('() => window.__keyResults')
+
+        print(f"\n{'='*60}")
+        print(f"All 21 Shift Symbols Test:")
+        print(f"  Trusted:   {results['trusted']}")
+        print(f"  Untrusted: {results['untrusted']}")
+        print(f"{'='*60}")
+
+        # Every shift symbol must be trusted
+        for sym in all_shift:
+            assert sym in results['trusted'], f"'{sym}' NOT in trusted events"
+            assert sym not in results['untrusted'], f"'{sym}' IS in untrusted events"
+
+        await browser.close()
+
+    @pytest.mark.asyncio
+    async def test_clear_uses_isolated_world(self):
+        """clear() calls isSelectorFocused — must not leak evaluate."""
+        from cloakbrowser import launch_async
+
+        browser = await launch_async(headless=True, humanize=True)
+        page = await browser.new_page()
+
+        await page.goto('https://www.wikipedia.org', wait_until='domcontentloaded')
+        await asyncio.sleep(1)
+
+        await page.evaluate("""
+            () => {
+                window.__evalLeaks = [];
+                const origQS = document.querySelector.bind(document);
+                document.querySelector = function(sel) {
+                    try { throw new Error(); } catch (e) {
+                        if (e.stack.includes(':302:')) {
+                            window.__evalLeaks.push(sel);
+                        }
+                    }
+                    return origQS(sel);
+                };
+            }
+        """)
+
+        # fill → click + type (isInputElement + isSelectorFocused)
+        await page.locator('#searchInput').fill('some text')
+        await asyncio.sleep(0.3)
+
+        # clear → isSelectorFocused check
+        await page.locator('#searchInput').clear()
+        await asyncio.sleep(0.3)
+
+        leaks = await page.evaluate('() => window.__evalLeaks')
+        assert len(leaks) == 0, f"clear() leaked via evaluate: {leaks}"
+
+        val = await page.locator('#searchInput').input_value()
+        assert val == '', f"clear() didn't clear: '{val}'"
+
+        await browser.close()
Author	SHA1	Message	Date
CloakHQ	06d77e7261	refactor: remove dead stealth args, let binary handle GPU diversity Remove --disable-blink-features=AutomationControlled (dead, binary handles navigator.webdriver at source level) and hardcoded GPU vendor/renderer flags. Binary auto-generates diverse GPU profiles from fingerprint seed. Improves fingerprint diversity -- previously every user shared the same GPU string. Bump to v0.3.21.	2026-04-07 07:16:22 +02:00
CloakHQ	211bd93d3e	fix(docker): install geoip2 in Docker image geoip=True raised ImportError inside the container because geoip2 was not installed. Added [geoip] extra to pip install.	2026-04-07 06:37:14 +02:00
CloakHQandkitiho	1060772734	fix: allow null viewport in Python wrapper (mirrors #107 ) viewport=None now disables viewport emulation via Playwright's no_viewport=True, matching the JS wrapper's viewport: null behavior. Uses a sentinel to distinguish "not provided" from explicit None. Co-authored-by: kitiho <51785099+kitiho@users.noreply.github.com>	2026-04-07 05:14:01 +02:00
kitihoandGitHub	8eb2e4b905	fix: allow null viewport to disable viewport emulation (#107 ) fix: allow null viewport to disable viewport emulation	2026-04-07 05:11:44 +02:00
CloakHQ	216a7d6a6a	fix(examples): enable geoip in stealth test to fix FingerprintJS detection	2026-04-06 02:38:26 +02:00
CloakHQ	02359f69c8	ci: remove npm self-upgrade step — Node 22 ships with compatible npm	2026-04-06 02:08:44 +02:00
CloakHQ	a0c7704c4b	release: v0.3.20 — 48 patches, WebRTC IP spoofing, proxy signal removal	2026-04-06 01:54:35 +02:00
lilos	ccda93669e	feat(humanize): implement CDP Isolated Worlds and trusted keyboard events (fixes #110 )	2026-04-06 01:43:46 +02:00
CloakHQ	eb4efef329	feat: add --fingerprint-webrtc-ip flag with auto-resolve support Two ways to spoof WebRTC ICE candidate IPs: 1. --fingerprint-webrtc-ip=auto in args: resolves proxy exit IP via HTTP call through the proxy (ipify.org). No extra deps needed. 2. geoip=True: auto-injects the flag for free (exit IP already resolved during timezone/locale lookup, zero extra network cost). Explicit IP (--fingerprint-webrtc-ip=1.2.3.4) also supported. User-provided values always take precedence. Python + JS wrappers, README docs, tests.	2026-04-06 01:16:10 +02:00
CloakHQ	25d34dcea3	feat(cloakserve): add connection tracking, configurable data dir, better status endpoint - Move `import websockets` to top-level (guaranteed by [serve] extra) - Add --data-dir flag with smart default (Docker → /tmp/cloakserve, bare metal → ~/.cloakbrowser/cloakserve) - Store launch params (tz/locale/proxy) on ChromeProcess for conflict logging - Enhance GET / to return per-process detail (pid, port, seed, connections, config) - Add connection refcounting in WS handlers for status visibility - Add first-launch-wins note to README - Add tests for data-dir, Docker detection, and connection tracking	2026-04-05 22:41:33 +02:00
CloakHQ	c9e4f58353	feat: rewrite cloakserve as CDP multiplexer with per-connection fingerprint seeds Spawns a separate Chrome process per unique fingerprint seed, all behind a single port (9222). Clients specify seeds and fingerprint params via query string on the CDP URL: connect_over_cdp("http://host:9222?fingerprint=12345&timezone=Asia/Tokyo") Supports all --fingerprint-* flags as query params, geoip=true for auto timezone/locale from proxy IP, and proxy= for per-process proxies. - Rewrite bin/cloakserve from 57-line wrapper to aiohttp CDP multiplexer - Add ChromePool with per-seed process management and port allocation - Bidirectional WebSocket proxy for CDP traffic - URL rewriting for /json/version, /json/list, and WS paths - Rename _build_args -> build_args, _maybe_resolve_geoip -> maybe_resolve_geoip - Add aiohttp + websockets to serve optional deps - Dockerfile installs .[serve] extras - Add 20 unit tests for cloakserve (param parsing, CLI args, URL rewriting)	2026-04-05 22:30:18 +02:00
CloakHQ	c58b691f1c	chore(deps): bump actions/checkout, docker/setup-qemu, docker/setup-buildx, docker/login-action; group Dependabot PRs	2026-04-05 22:26:14 +02:00
CloakHQ	1b91a33e51	chore: update integration examples and gitignore - browser_use: migrate to BrowserSession + bundled ChatOpenAI API - crawl4ai: add browser_mode="cdp" param - gitignore: add captures/	2026-04-02 01:32:08 +02:00
CloakHQ	1bfd5ca036	docs: update patch count to 42, add --fingerprint-noise flag, bump version refs	2026-03-30 20:46:16 +02:00