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+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Media test: networkState</title>
+ <script src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+ <script type="text/javascript" src="manifest.js"></script>
+</head>
+<body onunload="mediaTestCleanup();">
+<video id='v1'></video><audio id='a1'></audio>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+"use strict";
+var v1 = document.getElementById('v1');
+var a1 = document.getElementById('a1');
+var passed = "truthy";
+
+try {
+ v1.networkState = 0;
+} catch (e) {
+ passed = !passed;
+}
+try {
+ a1.networkState = 0;
+} catch (e) {
+ passed = !passed;
+}
+ok(passed === true,
+ "Setting networkState throws in strict mode (readonly attribute)");
+</script>
+
+<script class="testbody" type="text/javascript">
+var v1 = document.getElementById('v1');
+var a1 = document.getElementById('a1');
+var passed = false;
+
+var oldv1ns = v1.networkState, olda1ns = a1.networkState;
+try {
+ v1.networkState = 0;
+ a1.networkState = 0;
+ passed = v1.networkState === oldv1ns && a1.networkState === olda1ns;
+} catch (e) { }
+ok(passed, "Should not be able to modify networkState (readonly attribute)");
+</script>
+</pre>
+</body>
+</html>