diff --git a/resources/example-behaviour.js b/resources/example-behaviour.js
index 3a66e8ae6b..1615d3102a 100644
--- a/resources/example-behaviour.js
+++ b/resources/example-behaviour.js
@@ -1,4 +1,7 @@
 ;(function() {
+  if (window.location.host === 'localhost:3000') {
+    return;
+  }
   var container = document.querySelector('.navbar .navbar-inner .container'),
       form = document.createElement('form'),
       select = document.createElement('select'),