Invalid values for <track kind> are currently treated as "subtitles". This means that any new values will be treated as subtitles by old UAs. Instead use "metadata" as the "invalid value default", to avoid UAs showing <track>s with unrecognized values.
Documentation
Specification
Status in Chromium
Enabled by default (tracking bug) in:
- Chrome for desktop release 52
- Chrome for Android release 52
- Android WebView release 52
Consensus & Standardization
After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.
- Shipped/Shipping
- No signal
- No signal
- No signals
Owner
Last updated on 2020-11-09