EpubMediaTrack

One <track> element of a media element: a WebVTT file of timed text (#483).

Properties

a zip path, as EpubDocument.resource reads it, or a URL with a scheme.

whether the element asks to show this track when nothing else is chosen.

what the track holds. A track without a kind holds subtitles, and one with a kind that HTML does not know holds metadata.

the label of the track, for a menu, or null.

the srclang of the track, or null.