<html class="reftest-wait">
<head>
<script type="text/javascript">

var s;

function boom()
{
  s = document.createElement("span");
  s.innerHTML = "<video src='data:text/html,' autoplay='autoplay'><\/video>";
  document.body.appendChild(document.createElement("iframe"));
  setTimeout(boom2, 0);
}

function boom2()
{
  s.innerHTML = "";
  document.documentElement.removeAttribute("class");
}

</script>
</head>

<body onload="setTimeout(boom, 0);"></body>
</html>