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- <html>
- <head>
- <script>
- function boom()
- {
- window.addEventListener("DOMSubtreeModified", function(){}, false);
- var m = document.createElementNS("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", "menuitem");
- document.body.appendChild(m);
- m.setAttribute("type", "checkbox");
- m.setAttribute("checked", "true");
- m.removeAttribute("type");
- }
- </script>
- </head>
- <body onload="boom();"></body>
- </html>
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