diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_8_5/regress/regress-584578.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_8_5/regress/regress-584578.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,12 @@
+// |reftest| skip
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/licenses/publicdomain/
+// Contributor: Jesse Ruderman <jruderman@gmail.com>
+
+try {
+  var x = Proxy.create( {get:function(r,name){return {}[name]}} );
+  x.watch('e', function(){});
+} catch (exc) {
+}
+
+reportCompare(0, 0, 'ok');