diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_6/Array/regress-566651.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_6/Array/regress-566651.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ * Contributor: Blake Kaplan
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 566651;
+var summary = 'setting array.length to null should not throw an uncatchable exception';
+var actual = 0;
+var expect = 0;
+
+printBugNumber(BUGNUMBER);
+printStatus (summary);
+
+var a = [];
+a.length = null;
+
+reportCompare(expect, actual, summary);