track-load-from-src-readyState.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/media-elements/track/track-element/track-load-from-src-readyState.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Load event on HTMLTrackElement and LOADED readyState on TextTrack when src is set from JavaScript</title>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<video>

    <track>

</video>

<script>

async_test(function(t) {

    var track = document.querySelector("track");

    assert_equals(track.readyState, HTMLTrackElement.NONE);

    track.onload = t.step_func_done(function() {

        assert_equals(track.readyState, HTMLTrackElement.LOADED);

});

    track.src = "resources/webvtt-file.vtt";

    track.track.mode = "hidden";

});

</script>