The webdriver patch deleted navigator.webdriver, leaving it `undefined`. Real
Chrome reports `false`, so `undefined` is itself a detection tell, and deleting
it also removes the native `false` that Emulation.setAutomationOverride sets.
Now we rely on setAutomationOverride for a native (undetectable) `false` and
only force `false` via a getter as a fallback when webdriver is still `true`
(older Chrome without that override) — never delete it. Verified: FullLaunch
headless now reports navigator.webdriver === false (boolean), consistently.
- Created cli/src/native/stealth.rs with stealth JS injection via CDP
- Extracted 32 patch IIFEs from TS stealth.ts into stealth_scripts.js
- Injected via Page.addScriptToEvaluateOnNewDocument on every launch/connect
- Added stealth Chrome args (disable AutomationControlled, use ANGLE GL)
- Auto-detects and cleans HeadlessChrome from User-Agent string
- Overrides navigator.userAgentData high-entropy hints
- Stealth enabled by default, disable with AGENT_BROWSER_STEALTH=0
Track 2 of native-stealth migration.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
leeguooooo