diff --git a/test/worker.js b/test/worker.js
index 878a9df2a..521249af8 100644
--- a/test/worker.js
+++ b/test/worker.js
@@ -3,4 +3,4 @@ addEventListener('message', function(e) {
     importScripts(e.data);
     postMessage(_.VERSION);
   }
-});
+}, false);