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<!DOCTYPE html>
<html>
<head>
  <title> Bug 1319486 : Crash if a texttrackcue added to different texttracks. </title>
</head>
<body>
<video id=v1></video>
<video id=v2></video>
</body>
<meta charset="utf-8">
<script type="text/javascript">

addEventListener('DOMContentLoaded', function(){
  let cue,tt1,tt2;
  v1.play();
  tt1 = v1.addTextTrack('metadata', "", "");
  v1.play();
  v1.currentTime = 8;
  cue = new VTTCue(0, 0.5, "");
  tt1.addCue(cue);
  tt2 = v2.addTextTrack('captions', "", "");
  tt2.addCue(cue);
  tt2.removeCue(cue);
  tt1.addCue(new VTTCue(0.7, 2, ""));
});
</script>
</html>