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<!DOCTYPE html>
<link rel="help" href="https://html.spec.whatwg.org/multipage/media.html#text-track-model">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/media.js"></script>
<div id="log"></div>
<script>
// Media elements have a "list of pending text tracks" which should be populated
// with text tracks with readyState "loading". When the text track src is
// invalid or points to a non-existent resource, it shouldn't be possible to
// block the media element's readyState indefinitely.
function t(trackSrc) {
const track = document.createElement('track');
track.src = trackSrc;
track.default = true;
async_test(t => {
const video = document.createElement('video');
video.autoplay = true;
video.controls = true; // for visual inspection, not part of test
video.src = getVideoURI('/media/movie_5');
video.appendChild(track);
document.body.appendChild(video);
// The playing event isn't used because it's fired in Safari even when the
// playback doesn't actually start.
video.ontimeupdate = t.step_func(() => {
if (video.currentTime > 0)
t.done();
});
}, `<video autoplay> with ${track.outerHTML} child`);
}
t("invalid://url");
t("404");
t("");
</script>
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