no-duplicate-track

Disallow duplicate track elements with the same kind, srclang, and label under a media element.

Severity

error

❌ Incorrect

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

✅ Correct

<video>
  <track kind="subtitles" srclang="en" label="English" src="a.vtt">
  <track kind="subtitles" srclang="fr" label="French" src="b.vtt">
</video>

Reference

• HTML Standard - The track element

Configuration

{
  "rules": {
    "no-duplicate-track": "error"
  }
}