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Test Info:

<!DOCTYPE html>
<html>
<head>
<script>
function boom()
{
var root = document.documentElement;
root.contentEditable = "true";
document.removeChild(root);
document.appendChild(root);
document.execCommand("insertunorderedlist", false, null);
document.execCommand("inserthtml", false, "<span></span>");
document.execCommand("outdent", false, null);
}
</script>
</head>
<body onload="boom();"></body>
</html>