Christian PillsburyandClaude Opus 4.8
3983195661
A track reload read its `previous` (the prior window it carries the timeline forward from) before the playlist fetch await, then parsed against that stale snapshot after. When anchor-live-tracks established the shared live anchor during the fetch — stamping every track's timeline via positionAllTracksToAnchor — the in-flight reload wrote a window built on the pre-stamp (un-anchored) snapshot, clobbering the stamp. Anchoring is pin-once, so the track was never re-corrected: its model timeline sat seconds off the anchor and the loader stopped fetching it near currentTime. Observed live on Mux LL-HLS as the selected video track stranded ~hundreds of seconds off the anchor while its un-reloaded ABR-shell siblings stayed anchored — video never buffered, playback stalled. Re-read `previous` from a fresh peek after the fetch and parse against that. With no yield between the re-read and the write, no concurrent writer can interleave, so the stamp is carried forward instead of lost. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Video.js v10
Modern, modular, and composable media player framework for Web and React.
🚧 Beta - close to stable. Experimental adoption in real projects. 🚧
Video.js v10 is close to stable. Try it out in real projects and share your feedback 🙏.
- Read our design documents.
- Read the v10 discussion topic.
- Watch Heff's recent presentation.
Timeline
- Technical Preview (Complete): Initial showcase for Demuxed.
- Alpha (Complete): See milestone
- Beta (Complete): See milestone
- GA (Mid 2026): See milestone ← WIP
- Video.js (End of 2026): Video.js core/contrib parity and supported plugins migrated.
Documentation
If you'd like to get started and learn more, you can find our documentation on our website:
Community
If you need help with anything related to Video.js 10, or if you'd like to casually chat with other members:
Contributing
We'd love for you to join our community channels above and give us feedback! Feedback on any of the following would help us:
- Player skin designs
- Component structures and APIs
- Package structure and exports
- Repo, workspace, contributor guides
Please see our contributing guide for getting set up locally and making code or docs changes.
Code of Conduct
Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.