release: v0.3.20 — 48 patches, WebRTC IP spoofing, proxy signal removal

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.

CHANGELOG.md

@@ -6,6 +6,18 @@ Changes are tagged: **[wrapper]** for Python/JS wrapper, **[binary]** for Chromi
 
 ---
 
+## [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)

README.md

@@ -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>
 
-- **42 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: v0.3.19 (Chromium 145.0.7632.159.8)
+## 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. 4 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
-- **42 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 42 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)
 
@@ -573,6 +582,7 @@ 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 |
 
@@ -1009,7 +1019,7 @@ A: Yes. Pass `proxy="http://user:pass@host:port"` to `launch()`.
 
 | Feature | Status |
 |---------|--------|
-| Linux x64 — Chromium 145 (42 patches) | ✅ Released |
+| Linux x64 — Chromium 145 (48 patches) | ✅ Released |
 | macOS arm64/x64 — Chromium 145 (26 patches) | ✅ Released |
 | Windows x64 — Chromium 145 (33 patches) | ✅ Released |
 | JavaScript/Puppeteer + Playwright support | ✅ Released |
@@ -1033,7 +1043,7 @@ 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-v145.0.7632.159.8
+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

bin/cloakserve

@@ -36,7 +36,7 @@ import aiohttp
 import websockets
 from aiohttp import web
 
-from cloakbrowser.browser import build_args, maybe_resolve_geoip
+from cloakbrowser.browser import build_args, maybe_resolve_geoip, _resolve_webrtc_args
 from cloakbrowser.download import ensure_binary
 
 logging.basicConfig(
@@ -166,8 +166,9 @@ class ChromePool:
                 await self._cleanup_process(seed_key)
 
             # Resolve geoip if requested
+            exit_ip = None
             if geoip and proxy:
-                timezone, locale = maybe_resolve_geoip(True, proxy, timezone, locale)
+                timezone, locale, exit_ip = maybe_resolve_geoip(True, proxy, timezone, locale)
 
             # Build Chrome args via shared logic
             fp_extra = [f"--fingerprint={actual_seed}"]
@@ -176,6 +177,12 @@ class ChromePool:
             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,

cloakbrowser/_version.py

@@ -1 +1 @@
-__version__ = "0.3.19"
+__version__ = "0.3.20"

cloakbrowser/browser.py

@@ -101,7 +101,11 @@ def launch(
     sync_playwright = _import_sync_playwright(_resolve_backend(backend))
 
     binary_path = ensure_binary()
-    timezone, locale = maybe_resolve_geoip(geoip, proxy, timezone, locale)
+    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))
@@ -186,7 +190,11 @@ 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)
+    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))
@@ -284,7 +292,11 @@ def launch_persistent_context(
     timezone = _resolve_timezone(timezone, kwargs)
 
     binary_path = ensure_binary()
-    timezone, locale = maybe_resolve_geoip(geoip, proxy, timezone, locale)
+    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(
@@ -399,7 +411,11 @@ async def launch_persistent_context_async(
     timezone = _resolve_timezone(timezone, kwargs)
 
     binary_path = ensure_binary()
-    timezone, locale = maybe_resolve_geoip(geoip, proxy, timezone, locale)
+    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(
@@ -497,7 +513,11 @@ 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.
@@ -590,28 +610,88 @@ def _ensure_proxy_scheme(proxy_url: str) -> str:
     return proxy_url if "://" in proxy_url else f"http://{proxy_url}"
 
 
+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 _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(

cloakbrowser/config.py

@@ -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",

cloakbrowser/geoip.py

@@ -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
 
 
 # ---------------------------------------------------------------------------

cloakbrowser/human/__init__.py

@@ -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
@@ -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)

cloakbrowser/human/keyboard.py

@@ -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)
 
@@ -86,7 +120,50 @@ 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:
+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)

cloakbrowser/human/keyboard_async.py

@@ -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)
 
@@ -67,7 +81,50 @@ 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:
+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)

js/README.md

@@ -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.**
 
-- **42 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

js/package.json

@@ -1,6 +1,6 @@
 {
   "name": "cloakbrowser",
-  "version": "0.3.19",
+  "version": "0.3.20",
   "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",

js/src/config.ts

@@ -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",

js/src/geoip.ts

@@ -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;
+  }
+}

js/src/human/index.ts

@@ -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));

js/src/human/keyboard.ts

@@ -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);
     }
@@ -99,7 +141,54 @@ 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> {
+/**
+ * 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;
+
+    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);
@@ -113,9 +202,6 @@ async function typeShiftSymbol(page: Page, raw: RawKeyboard, ch: string, cfg: Hu
     await sleep(randRange(cfg.shift_up_delay));
     await raw.up('Shift');
   }
-
-function isUpperCase(ch: string): boolean {
-  return ch.length === 1 && ch >= 'A' && ch <= 'Z';
 }
 
 async function interCharDelay(cfg: HumanConfig): Promise<void> {

js/src/playwright.ts

@@ -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,
@@ -87,11 +91,16 @@ 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 {
@@ -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.

js/src/puppeteer.ts

@@ -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,

js/tests/config.test.ts

@@ -182,6 +182,18 @@ 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" });

js/tests/puppeteer.test.ts

@@ -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", () => {

tests/test_build_args.py

@@ -158,3 +158,44 @@ def test_override_logs_debug(caplog):
     with caplog.at_level(logging.DEBUG, logger="cloakbrowser"):
         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"]

tests/test_geoip.py

@@ -97,46 +97,51 @@ def test_resolve_geo_returns_none_when_db_missing():
 
 
 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"
 
 
 # ---------------------------------------------------------------------------

tests/test_launch_context.py

@@ -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):

tests/test_persistent_context.py

@@ -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()

tests/test_proxy.py

@@ -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"
 

tests/test_stealth_reproduction_110.py

@@ -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()