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<script>
if (window.testRunner)
    testRunner.dumpAsText();


window.onload = function () {
  document.body.appendChild(document.getElementById('from1'));
}
</script>
<div>
This tests that we won't crash when an onload method changes the frame hierarchy when the main frame load is stopped.
</div>
<div>SUCCESS - didn't crash</div>
<iframe id="from1" src="/navigation/resources/slow-resource-1-sec.pl"></iframe>
<script>setTimeout(stop, 0);</script>
</html>