Add HTTP header spoofing, fix timezone overrides, and expand fingerprint coverage
- Spoof User-Agent and Accept-Language HTTP headers per container via
webRequest.onBeforeSendHeaders, eliminating JS/HTTP header mismatch
- Wrap Intl.DateTimeFormat constructor to inject spoofed timezone
- Pre-create timezone formatters outside exportFunction callbacks to
avoid cross-compartment issues with Date.toString/toTimeString
- Fix WebRTC relay-only config to use JSON serialization across
Firefox compartment boundaries
- Add new fingerprint vector protections: speechSynthesis.getVoices(),
matchMedia screen dimension queries, performance.now() precision
reduction, navigator.storage.estimate(), WebGL extension normalization
- Add comprehensive fingerprint test page (test/fingerprint-test.html)
covering all 17 vectors with per-container comparison support
sal
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