<!DOCTYPE html>
<html class="reftest-wait">
<audio id=a src=1835164.opus controls autoplay></audio>
<script>
a.onloadedmetadata = function() {
  a.currentTime = 1e40;
  a.play();
}
a.onplaying = function() {
  document.documentElement.removeAttribute("class");
}
</script>
</html>
