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

Remove --disable-blink-features=AutomationControlled (dead, binary handles
navigator.webdriver at source level) and hardcoded GPU vendor/renderer flags.
Binary auto-generates diverse GPU profiles from fingerprint seed. Improves
fingerprint diversity -- previously every user shared the same GPU string.

Bump to v0.3.21.

CHANGELOG.md

@@ -6,6 +6,15 @@ Changes are tagged: **[wrapper]** for Python/JS wrapper, **[binary]** for Chromi
 
 ---
 
+## [0.3.21] — 2026-04-07
+
+- **[wrapper]** Remove dead `--disable-blink-features=AutomationControlled` flag -- binary patch 009 already handles `navigator.webdriver` at source level
+- **[wrapper]** Remove hardcoded GPU vendor/renderer flags -- binary auto-generates diverse, realistic GPU profiles from the fingerprint seed. Each seed gets a unique GPU instead of every user sharing the same one
+- **[wrapper]** Allow `viewport=None` to disable viewport emulation in both Python and JS wrappers (thanks [@kitiho](https://github.com/kitiho), #107)
+- **[wrapper]** Enable `geoip=True` in stealth test example to fix FingerprintJS detection
+- **[meta]** Remove npm self-upgrade step in CI -- Node 22 ships with compatible npm
+- **[docker]** Install `geoip2` in Docker image for GeoIP auto-detection support
+
 ## [0.3.20] — 2026-04-06
 
 - **[binary]** Upgrade Linux x64 build to 145.0.7632.159.9 — 48 source-level C++ patches (up from 42)

README.md

@@ -554,14 +554,10 @@ Every `launch()` call sets these automatically. The **wrapper** applies platform
 |------|--------------|---------------|----------|
 | `--fingerprint` | Random (10000–99999) | Random (10000–99999) | Master seed for canvas, WebGL, audio, fonts, client rects |
 | `--fingerprint-platform` | `windows` | `macos` | `navigator.platform`, User-Agent OS, GPU pool selection |
-| `--fingerprint-gpu-vendor` | `NVIDIA Corporation` | `Google Inc. (Apple)` | WebGL `UNMASKED_VENDOR_WEBGL` |
-| `--fingerprint-gpu-renderer` | `NVIDIA GeForce RTX 3070` | `ANGLE (Apple, ANGLE Metal Renderer: Apple M3, Unspecified Version)` | WebGL `UNMASKED_RENDERER_WEBGL` |
 
-The binary auto-generates hardware concurrency (8), device memory (8), and screen dimensions (1920x1080 on Windows/Linux, 1440x900 on macOS) from the seed. Override with explicit flags if needed.
+The binary auto-generates everything else from the seed: GPU, hardware concurrency, device memory, and screen dimensions. Each seed produces a unique, consistent fingerprint. Override with explicit flags if needed.
 
-> **Using the binary directly?** It works out of the box with zero flags — the binary auto-spoofs everything. Pass `--fingerprint=seed` for a persistent identity, or use explicit flags like `--fingerprint-gpu-renderer` to override any auto-generated value.
-
-> **Production tip:** For better stealth at scale, pass your own GPU, screen, and hardware values instead of relying on defaults. Custom parameters make your sessions harder to cluster by anti-bot systems that look for uniform fingerprint profiles.
+> **Using the binary directly?** It works out of the box with zero flags -- the binary auto-spoofs everything. Pass `--fingerprint=seed` for a persistent identity, or use explicit flags like `--fingerprint-gpu-renderer` to override any auto-generated value.
 
 ### Additional Flags
 
@@ -569,6 +565,8 @@ Supported by the binary but **not set by default** — pass via `args` to custom
 
 | Flag | Controls |
 |------|----------|
+| `--fingerprint-gpu-vendor` | WebGL `UNMASKED_VENDOR_WEBGL` (auto-generated from seed + platform) |
+| `--fingerprint-gpu-renderer` | WebGL `UNMASKED_RENDERER_WEBGL` (auto-generated from seed + platform) |
 | `--fingerprint-hardware-concurrency` | `navigator.hardwareConcurrency` (auto-generated: `8`) |
 | `--fingerprint-device-memory` | `navigator.deviceMemory` in GB (auto-generated: `8`) |
 | `--fingerprint-screen-width` | Screen width (auto-generated: `1920` Win/Linux, `1440` macOS) |
@@ -598,11 +596,9 @@ browser = launch(args=["--fingerprint=42069"])
 browser = launch(stealth_args=False, args=[
     "--fingerprint=42069",
     "--fingerprint-platform=windows",
-    "--fingerprint-gpu-vendor=NVIDIA Corporation",
-    "--fingerprint-gpu-renderer=NVIDIA GeForce RTX 3070",
 ])
 
-# Override GPU to look like a different machine
+# Override GPU to look like a specific machine
 browser = launch(args=[
     "--fingerprint-gpu-vendor=Intel Inc.",
     "--fingerprint-gpu-renderer=Intel Iris OpenGL Engine",
@@ -656,11 +652,11 @@ browser = await launch_async(args=["--remote-debugging-port=9242"])
 
 | Platform | Chromium | Patches | Status |
 |---|---|---|---|
-| Linux x86_64 | 145 | 42 | ✅ Latest |
-| Linux arm64 (RPi, Graviton) | 145 | 33 | ✅ |
+| Linux x86_64 | 145 | 48 | ✅ Latest |
+| Linux arm64 (RPi, Graviton) | 145 | 48 | ✅ |
 | macOS arm64 (Apple Silicon) | 145 | 26 | ✅ |
 | macOS x86_64 (Intel) | 145 | 26 | ✅ |
-| Windows x86_64 | 145 | 33 | ✅ |
+| Windows x86_64 | 145 | 48 | ✅ |
 
 The wrapper auto-downloads the correct binary for your platform.
 

cloakbrowser/_version.py

@@ -1 +1 @@
-__version__ = "0.3.20"
+__version__ = "0.3.21"

cloakbrowser/config.py

@@ -48,26 +48,17 @@ def get_default_stealth_args() -> list[str]:
 
     base = [
         "--no-sandbox",
-        "--disable-blink-features=AutomationControlled",
         f"--fingerprint={seed}",
     ]
 
     if system == "Darwin":
         # Tell the fingerprint patches we're on macOS so GPU/UA match natively
-        return base + [
-            "--fingerprint-platform=macos",
-            "--fingerprint-gpu-vendor=Google Inc. (Apple)",
-            "--fingerprint-gpu-renderer=ANGLE (Apple, ANGLE Metal Renderer: Apple M3, Unspecified Version)",
-        ]
+        return base + ["--fingerprint-platform=macos"]
 
     # Linux/Windows: Windows fingerprint profile
-    # Hardware concurrency, device memory, screen, and window size are
+    # Hardware concurrency, device memory, screen, window size, and GPU are
     # auto-generated by the binary from the seed (v14+).
-    return base + [
-        "--fingerprint-platform=windows",
-        "--fingerprint-gpu-vendor=Google Inc. (NVIDIA)",
-        "--fingerprint-gpu-renderer=ANGLE (NVIDIA, NVIDIA GeForce RTX 3070 (0x00002484) Direct3D11 vs_5_0 ps_5_0, D3D11)",
-    ]
+    return base + ["--fingerprint-platform=windows"]
 
 
 # ---------------------------------------------------------------------------

js/README.md

@@ -203,11 +203,11 @@ const page = await browser.newPage();
 
 | Platform | Chromium | Patches | Status |
 |---|---|---|---|
-| Linux x86_64 | 145 | 33 | ✅ Latest |
-| Linux arm64 (RPi, Graviton) | 145 | 33 | ✅ Latest |
+| Linux x86_64 | 145 | 48 | ✅ Latest |
+| Linux arm64 (RPi, Graviton) | 145 | 48 | ✅ Latest |
 | macOS arm64 (Apple Silicon) | 145 | 26 | ✅ Latest |
 | macOS x86_64 (Intel) | 145 | 26 | ✅ Latest |
-| Windows x86_64 | 145 | 33 | ✅ Latest |
+| Windows x86_64 | 145 | 48 | ✅ Latest |
 
 ## Requirements
 

js/package.json

@@ -1,6 +1,6 @@
 {
   "name": "cloakbrowser",
-  "version": "0.3.20",
+  "version": "0.3.21",
   "description": "Stealth Chromium that passes every bot detection test. Drop-in Playwright/Puppeteer replacement with source-level fingerprint patches.",
   "type": "module",
   "main": "dist/index.js",

js/src/config.ts

@@ -211,27 +211,16 @@ export function getDefaultStealthArgs(): string[] {
 
   const base = [
     "--no-sandbox",
-    "--disable-blink-features=AutomationControlled",
     `--fingerprint=${seed}`,
   ];
 
   if (isMac) {
     // macOS: run as native Mac browser — GPU/UA match natively
-    return [
-      ...base,
-      "--fingerprint-platform=macos",
-      "--fingerprint-gpu-vendor=Google Inc. (Apple)",
-      "--fingerprint-gpu-renderer=ANGLE (Apple, ANGLE Metal Renderer: Apple M3, Unspecified Version)",
-    ];
+    return [...base, "--fingerprint-platform=macos"];
   }
 
   // Linux/Windows: spoof as Windows desktop
-  // Hardware concurrency, device memory, screen, and window size are
+  // Hardware concurrency, device memory, screen, window size, and GPU are
   // auto-generated by the binary from the seed (v14+).
-  return [
-    ...base,
-    "--fingerprint-platform=windows",
-    "--fingerprint-gpu-vendor=Google Inc. (NVIDIA)",
-    "--fingerprint-gpu-renderer=ANGLE (NVIDIA, NVIDIA GeForce RTX 3070 (0x00002484) Direct3D11 vs_5_0 ps_5_0, D3D11)",
-  ];
+  return [...base, "--fingerprint-platform=windows"];
 }

js/tests/config.test.ts

@@ -21,16 +21,17 @@ describe("config", () => {
     const isMac = process.platform === "darwin";
 
     expect(args).toContain("--no-sandbox");
-    expect(args).toContain("--disable-blink-features=AutomationControlled");
 
     if (isMac) {
       expect(args).toContain("--fingerprint-platform=macos");
-      // macOS: no hardware-concurrency or GPU spoofing (uses native values)
-      expect(args.some((a) => a.includes("hardware-concurrency"))).toBe(false);
     } else {
       expect(args).toContain("--fingerprint-platform=windows");
     }
 
+    // GPU flags removed — binary auto-generates from seed + platform
+    expect(args.some((a) => a.includes("fingerprint-gpu-vendor"))).toBe(false);
+    expect(args.some((a) => a.includes("fingerprint-gpu-renderer"))).toBe(false);
+
     // Should have a random fingerprint seed
     const fingerprintArg = args.find((a) => a.startsWith("--fingerprint="));
     expect(fingerprintArg).toBeDefined();

tests/test_config.py

@@ -133,10 +133,14 @@ class TestStealthArgs:
         with patch("cloakbrowser.config.platform.system", return_value="Darwin"):
             args = get_default_stealth_args()
             assert "--fingerprint-platform=macos" in args
-            assert any("Apple" in a for a in args)
+            # GPU flags removed — binary auto-generates from seed + platform
+            assert not any("fingerprint-gpu-vendor" in a for a in args)
+            assert not any("fingerprint-gpu-renderer" in a for a in args)
 
     def test_linux_windows_profile(self):
         with patch("cloakbrowser.config.platform.system", return_value="Linux"):
             args = get_default_stealth_args()
             assert "--fingerprint-platform=windows" in args
-            assert any("NVIDIA" in a for a in args)
+            # GPU flags removed — binary auto-generates from seed + platform
+            assert not any("fingerprint-gpu-vendor" in a for a in args)
+            assert not any("fingerprint-gpu-renderer" in a for a in args)