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<!DOCTYPE html>
<title>Ensure that no text track cues are active after the video is unloaded</title>
<script src="/common/media.js"></script>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
async_test(function(t) {
var eventCount = 0;
function eventCallback() {
eventCount++;
if (eventCount == 3) {
assert_equals(trackElement.track.activeCues.length, 1);
video.src = '';
}
}
var video = document.createElement('video');
video.src = getVideoURI('/media/movie_5');
// uanset media element's `show-poster` flag in order to run `time marches on`
// when we add new cues into media element's cues list.
video.play();
var trackElement = document.createElement('track');
trackElement.onload = t.step_func(eventCallback);
trackElement.oncuechange = t.step_func(eventCallback);
video.oncanplaythrough = t.step_func(eventCallback);
video.onerror = t.step_func_done(function(event) {
assert_equals(event.target, video);
assert_not_equals(video.error, null);
assert_equals(video.error.code, MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED);
assert_equals(video.networkState, HTMLMediaElement.NETWORK_NO_SOURCE);
assert_equals(trackElement.track.activeCues.length, 0);
});
trackElement.src = 'resources/captions-fast.vtt';
trackElement.kind = 'captions';
trackElement.default = true;
video.appendChild(trackElement);
});
</script>
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