diff -r 000000000000 -r 6474c204b198 toolkit/components/url-classifier/tests/mochitest/evilWorker.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/components/url-classifier/tests/mochitest/evilWorker.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,3 @@
+onmessage = function() {
+  postMessage("loaded bad file");
+}