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diff --git a/js/xpconnect/tests/chrome/test_bug1516237.html b/js/xpconnect/tests/chrome/test_bug1516237.html
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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=1516237
+-->
+<head>
+ <meta charset="utf-8">
+ <title>Test for Bug 1516237</title>
+ <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="chrome://global/skin"/>
+ <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
+ <script type="application/javascript">
+
+/** Test for Bug 1516237 **/
+function go() {
+ SimpleTest.waitForExplicitFinish();
+
+ var frame = $('subframe');
+ frame.onload = null;
+
+ // Get a CCW wrapping an Xray waiver wrapping a WindowProxy.
+ var w = frame.contentWindow;
+ var ccwToWaiver = w.wrappedJSObject;
+ ccwToWaiver.testProp = 1;
+ is(ccwToWaiver.testProp, 1, "Can set properties on content window");
+
+ // Load a chrome page in the content frame. This might create a realm in
+ // the current chrome compartment - in that case we nuke the CCW to the
+ // waiver.
+ frame.onload = function() {
+ is(Cu.getClassName(w.Math, /* unwrap = */ false), "Math",
+ "Window must be in same system compartment");
+ ok(Cu.isDeadWrapper(ccwToWaiver),
+ "Nuked CCW to same-compartment window");
+ SimpleTest.finish();
+ };
+ frame.src = "file_empty.html";
+}
+
+ </script>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1516237">Mozilla Bug 1516237</a>
+
+<iframe id="subframe" src="http://example.org/tests/js/xpconnect/tests/mochitest/file_empty.html" onload="go()"></iframe>
+
+</body>
+</html>