mirror of
https://github.com/classilla/tenfourfox.git
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39 lines
774 B
HTML
39 lines
774 B
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<script>
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function addEmptyMutationObserver()
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{
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var m = new MutationObserver(function () {});
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var e = document.createElement('i');
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m.observe(e, { childList: true });
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}
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function addPointlessMutationListener()
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{
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var a = document.createElementNS("http://www.w3.org/1999/xhtml", "div");
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a.appendChild(document.createTextNode("1"));
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function f() {
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window.removeEventListener("DOMSubtreeModified", f, false);
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a.insertAdjacentHTML("afterBegin", "<span></span>");
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};
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window.addEventListener("DOMSubtreeModified", f, false);
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}
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function boom()
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{
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addEmptyMutationObserver();
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addPointlessMutationListener();
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document.body.outerHTML = "";
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}
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</script>
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</head>
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<body onload="boom();"></body>
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</html>
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