Memoize the run-machinery promise itself (`#promise ??= this.#execute()`) rather than reassigning `#promise` to fresh `Promise.resolve(value)` / `Promise.reject(error)` on settle. The reassigned promises were never awaited, so an errored or aborted task that's not re-run (the norm — the RecurringRunner moves on to a clone) left an unhandled rejection. The memoized promise is the one callers await, so it's always handled. Also closes a sync-throw gap: a `#runFn` that throws synchronously is now captured as a rejected memoized promise instead of leaving `#promise` unset (which would re-execute on the next run()). 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.