no-multiple-default-track

Disallow multiple track elements with default in the same category under a media element.

Severity

error

❌ Incorrect

<video>
  <track kind="subtitles" default src="a.vtt" srclang="en">
  <track kind="captions" default src="b.vtt" srclang="en">
</video>

✅ Correct

<video>
  <track kind="subtitles" default src="a.vtt" srclang="en">
  <track kind="captions" src="b.vtt" srclang="en">
</video>

Reference

• HTML Standard - The track element

Configuration

{
  "rules": {
    "no-multiple-default-track": "error"
  }
}