diff -r 000000000000 -r 6474c204b198 js/xpconnect/tests/unit/test_bug867486.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/xpconnect/tests/unit/test_bug867486.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+const Cu = Components.utils;
+
+function run_test() {
+  var sb = new Cu.Sandbox('http://www.example.com', { wantComponents: true } );
+  do_check_false(Cu.evalInSandbox('"Components" in this', sb));
+}