webvtt/rendering/cues-with-video/processing-model/disable_controls_reposition.html

<!doctype html>
<html class="reftest-wait">
<title>WebVTT rendering, cue reposition after disabling controls</title>
<link rel="match" href="disable_controls_reposition-ref.html">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
video {
  outline: solid;
  width: 320px;
  height: 240px;
}
::cue {
  font-family: Ahem, sans-serif;
  font-size: 50px;
  color: green;
}
</style>
<script src="/common/reftest-wait.js"></script>
<video autoplay controls onplaying="this.onplaying = null;
                           this.pause();
                           this.currentTime = 0;
                           setTimeout(function(video){
                             video.controls = false;
                           }, 100, this);
                           takeScreenshotDelayed(1000);">
    <source src="/media/white.webm" type="video/webm">
    <source src="/media/white.mp4" type="video/mp4">
    <track src=support/foo.vtt>
    <script>
    document.getElementsByTagName('track')[0].track.mode = 'showing';
    </script>
</video>