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2 commits

Author SHA1 Message Date
ifedan-ed
c38ce9445e v16: Make Browser Whisper CDN failure graceful with clear warnings
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REALITY CHECK: Browser Whisper CDN loading cannot work in all environments
- Corporate firewalls block cdn.jsdelivr.net
- Network proxies filter JavaScript CDN
- Workers + importScripts + cross-origin = blocked by CSP/CORS

SOLUTION: Graceful degradation
- Clear user-friendly error messages
- Automatic fallback to server transcription
- Warning banner in Settings if CDN blocked
- Comprehensive troubleshooting documentation

Changes:
- browserWhisper.js: Show toast on worker error, fallback gracefully
- app.js: Display CSP warning banner on preload failure
- settings.html: Add warning about network/firewall requirements
- BROWSER_WHISPER_TROUBLESHOOTING.md: Complete guide for users

Key Message:
Browser Whisper is OPTIONAL. Server transcription (Google/AWS/OpenAI)
is the primary method and works everywhere. Browser Whisper is a
privacy-focused bonus feature that requires CDN access.

User Experience:
- If CDN works: Great! Browser Whisper available
- If CDN blocked: No problem! Server transcription works perfectly
- Clear messaging: User knows what to expect
2026-03-31 16:18:46 +00:00
Daniel Onyejesi
d1a7c97ecc Add browser-side Whisper transcription (local, zero network, HIPAA-safe)
- whisperWorker.js: Web Worker running @xenova/transformers Whisper in WASM
- browserWhisper.js: main-thread manager — audio→Float32 conversion, worker lifecycle
- transcribeAudio() checks BrowserWhisper.isEnabled() first, falls back to server
- Settings UI: enable/disable, model picker (tiny/base/small), pre-download button
- CSP: add wasm-unsafe-eval, cdn.jsdelivr.net, HuggingFace CDN domains
- Default: whisper-tiny.en (~39MB, ~2-3s per clip)
2026-03-31 07:30:17 -04:00