The Secure field was dropped in both Playwright<->internal cookie
conversion functions, causing cookies with __Secure-/__Host- prefixes
to be rejected by Chromium. Additionally, batch AddCookies meant one
invalid cookie would fail browser creation entirely.
Changes:
- Map Secure field in cookieToPlaywrightOptionalCookie and
playwrightCookieToCookie
- Add cookies one-by-one with slog.Warn on failure instead of
failing the entire batch
- Add unit tests for both conversion functions
Closes#75
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
