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Test Info:

<!DOCTYPE html>
<html>
<head>
<script>
function boom()
{
var root = document.documentElement;
while (root.firstChild) {
root.firstChild.remove();
}
var space = document.createTextNode(" ");
var body = document.createElementNS("http://www.w3.org/1999/xhtml", "body");
root.contentEditable = "true";
root.focus();
document.execCommand("contentReadOnly", false, null);
root.appendChild(body);
root.contentEditable = "false";
root.appendChild(space);
root.removeChild(body);
root.contentEditable = "true";
window.getSelection().removeAllRanges();
var r1 = document.createRange();
r1.setStart(root, 0);
r1.setEnd(root, 0);
window.getSelection().addRange(r1);
looseText = document.createTextNode("c");
var r2 = document.createRange();
r2.setStart(looseText, 0);
r2.setEnd(looseText, 0);
window.getSelection().addRange(r2);
document.execCommand("forwardDelete", false, null);
}
</script>
</head>
<body onload="boom();"></body>
</html>