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diff --git a/dom/bindings/test/test_bug1123516_maplikesetlikechrome.xhtml b/dom/bindings/test/test_bug1123516_maplikesetlikechrome.xhtml
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index 0000000000..724c40cbd3
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+++ b/dom/bindings/test/test_bug1123516_maplikesetlikechrome.xhtml
@@ -0,0 +1,70 @@
+<?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=1123516
+-->
+<window title="Mozilla Bug 1123516"
+        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+  <iframe id="t"></iframe>
+
+  <!-- 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=1123516"
+       target="_blank">Mozilla Bug 1123516</a>
+  </body>
+
+  <!-- test code goes here -->
+  <script type="application/javascript">
+   <![CDATA[
+     /* global TestInterfaceSetlikeNode */
+
+     /** Test for Bug 1123516 **/
+     function doTest() {
+       var win = $("t").contentWindow;
+       var sandbox = Cu.Sandbox(win, { sandboxPrototype: win });
+       is(sandbox._content, undefined, "_content does nothing over Xray");
+       // Test cross-compartment usage of maplike/setlike WebIDL structures.
+       SpecialPowers.pushPrefEnv({set: [['dom.expose_test_interfaces', true]]}, function() {
+         try {
+           var maplike = Cu.evalInSandbox("var m = new TestInterfaceMaplike(); m;", sandbox);
+           maplike.set("test2", 2);
+           is(maplike.get("test2"), 2, "Should be able to create and use maplike/setlike across compartments");
+           var test = Cu.evalInSandbox("m.get('test2');", sandbox);
+           is(test, 2, "Maplike/setlike should still work in original compartment");
+           is(maplike.size, 1, "Testing size retrieval across compartments");
+         } catch(e) {
+           ok(false, "Shouldn't throw when working with cross-compartment maplike/setlike interfaces " + e)
+         };
+         try {
+           var setlike = Cu.evalInSandbox("var m = new TestInterfaceSetlikeNode(); m.add(document.documentElement); m;", sandbox);
+           is(TestInterfaceSetlikeNode.prototype.has.call(setlike, win.document.documentElement), true,
+              "Cross-compartment unwrapping/comparison has works");
+           // TODO: Should throw until iterators are handled by Xrays, Bug 1023984
+           try {
+             TestInterfaceSetlikeNode.prototype.keys.call(setlike);
+             ok(false, "Calling iterators via xrays should fail");
+             /* eslint-disable-next-line no-shadow */
+           } catch(e) {
+             ok(true, "Calling iterators via xrays should fail");
+           }
+
+           setlike.forEach((v,k,t) => { is(v, win.document.documentElement, "Cross-compartment forEach works"); });
+           TestInterfaceSetlikeNode.prototype.forEach.call(setlike,
+                                                           (v,k,t) => { is(v, win.document.documentElement, "Cross-compartment forEach works"); });
+           is(TestInterfaceSetlikeNode.prototype.delete.call(setlike, win.document.documentElement), true,
+              "Cross-compartment unwrapping/comparison delete works");
+            /* eslint-disable-next-line no-shadow */
+         } catch(e) {
+           ok(false, "Shouldn't throw when working with cross-compartment maplike/setlike interfaces " + e)
+         };
+         SimpleTest.finish();
+       });
+     }
+
+     SimpleTest.waitForExplicitFinish();
+     addLoadEvent(doTest);
+   ]]>
+  </script>
+</window>