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Test Info:

<html>
<head>
<script>
try { o1 = document.createElement('code') } catch(e) { }
try { o2 = document.createElement('iframe') } catch(e) { }
try { document.documentElement.appendChild(o2) } catch(e) { }
try { o3 = o2.getSVGDocument() } catch(e) { }
try { o4 = document.caretPositionFromPoint(1, 1) } catch(e) { }
try { o3.head.appendChild(o1); } catch(e) { }
try { document.replaceChild(document.documentElement, document.documentElement); } catch(e) { }
try { document.replaceChild(o3.firstElementChild, document.documentElement); } catch(e) { }
window.close()
</script>
</head>
</html>