diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_5/extensions/regress-328443.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_5/extensions/regress-328443.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,32 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/. */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 328443;
+var summary = 'Uncatchable exception with |new (G.call) (F);| when F proto is null';
+var actual = '';
+var expect = 'Exception caught';
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+var F = (function(){});
+F.__proto__ = null;
+
+var G = (function(){});
+
+var z;
+
+z = "uncatchable exception!!!";
+try {
+  new (G.call) (F);
+
+  actual = "No exception";
+} catch (er) {
+  actual = "Exception caught";
+  printStatus("Exception was caught: " + er);
+}
+ 
+reportCompare(expect, actual, summary);