<!DOCTYPE html>
<html class="reftest-wait">
<head>
<script>
"use strict";

var f2;

function newIframe()
{
  var f = document.createElementNS("http://www.w3.org/1999/xhtml", "iframe");
  f.setAttributeNS(null, "src", "631421.png");
  document.body.appendChild(f);
  return f;
}

function b1()
{
  void newIframe();
  f2 = newIframe();
  setTimeout(b2, 0);
}

function b2()
{
  document.body.removeChild(f2);
  document.documentElement.removeAttribute("class");
}

</script>
</head>

<body onload="b1();"></body>
</html>
