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+<?xml version="1.0"?>
+<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
+<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=780199
+-->
+<window title="Mozilla Bug 780199"
+ xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
+ onload="test()">
+ <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
+
+ <!-- test results are displayed in the html:body -->
+ <body xmlns="http://www.w3.org/1999/xhtml">
+ <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=780199"
+ target="_blank">Mozilla Bug 780199</a>
+ </body>
+
+ <!-- test code goes here -->
+ <script type="application/javascript">
+ <![CDATA[
+
+ /** Test for Bug 780199 **/
+
+ SimpleTest.waitForExplicitFinish();
+
+ var b;
+
+ function callback(r) {
+ is(r[0].type, "attributes");
+ is(r[0].oldValue, b.getAttribute("src"));
+ setTimeout(continueTest, 500);
+ }
+
+ function continueTest() {
+ // Check that a new page wasn't loaded.
+ is(b.contentDocument.documentElement.textContent, "testvalue");
+ SimpleTest.finish();
+ }
+
+ function test() {
+ b = document.getElementById("b");
+ var m = new MutationObserver(callback);
+ m.observe(b, { attributes: true, attributeOldValue: true });
+ b.contentDocument.documentElement.textContent = "testvalue";
+ b.setAttribute("src", b.getAttribute("src"));
+ }
+
+ ]]>
+ </script>
+ <browser id="b" src="data:text/plain,initial"/>
+</window>