LayoutTests/editing/style/apply-style-crash3.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <head>
 <script src="../../resources/js-test.js"></script>
 </head>
 <body>
 <unknown>
 <script></script>
 <textarea></textarea>
 <script>
 function onDOMNodeRemoved(e) {
     if (!(e.srcElement instanceof Element))
         return;

     e.srcElement.insertAdjacentHTML('afterbegin', ' ');
     document.execCommand('FontSizeDelta', false, '1px');
 }

 document.addEventListener("DOMNodeRemoved", onDOMNodeRemoved, false);
 document.designMode = "on";
 document.execCommand("SelectAll", false)
 var unknown = document.getElementsByTagName("unknown")[0];
 unknown.textContent = "sss";
 unknown.outerHTML = "";
 document.execCommand("SelectAll", false);
 // Put description() here so as to not upset test condition.
 description("Verify that changing the style over an unknown element does not crash.");
 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<script src="../../resources/js-test.js"></script>
	</head>
	<body>
	<unknown>
	<script></script>
	<textarea></textarea>
	<script>
	function onDOMNodeRemoved(e) {
	if (!(e.srcElement instanceof Element))
	return;

	e.srcElement.insertAdjacentHTML('afterbegin', ' ');
	document.execCommand('FontSizeDelta', false, '1px');
	}

	document.addEventListener("DOMNodeRemoved", onDOMNodeRemoved, false);
	document.designMode = "on";
	document.execCommand("SelectAll", false)
	var unknown = document.getElementsByTagName("unknown")[0];
	unknown.textContent = "sss";
	unknown.outerHTML = "";
	document.execCommand("SelectAll", false);
	// Put description() here so as to not upset test condition.
	description("Verify that changing the style over an unknown element does not crash.");
	</script>
	</body>
	</html>