<!DOCTYPE html>
<html>

<head>
<script>

function boom()
{
  var video = document.createElement('video');
  var track = video.addTextTrack('chapters');
  window.meep = new TrackEvent("t", { "track": track });
  document.documentElement.style.expando = null;
}

</script>
</head>

<body onload="boom();">
</body>

</html>
