diff --git a/LayoutTests/fast/js/regress/resources/regress-pre.js b/LayoutTests/fast/js/regress/resources/regress-pre.js
new file mode 100644
index 0000000..c9b9f23
--- /dev/null
+++ b/LayoutTests/fast/js/regress/resources/regress-pre.js
@@ -0,0 +1,8 @@
+description("JSRegress/" + ("" + window.location).split('/').pop().split('.')[0]);
+_JSRegress_didSucceed = true;
+_JSRegress_oldOnError = window.onerror;
+window.onerror = function(message) {
+    debug("FAIL caught exception: " + message);
+    _JSRegress_didSucceed = false;
+    _JSRegress_oldOnError.apply(this, arguments);
+}