diff --git a/.jshintrc b/.jshintrc
index a8d17196e..bc41ce0af 100644
--- a/.jshintrc
+++ b/.jshintrc
@@ -49,6 +49,7 @@
     "notEqual",
     "require",
     "requirejs",
+    "hasModule",
     "Blob",
     "File"],
   "node" : false,
diff --git a/vendor/assets/javascripts/loader.js b/vendor/assets/javascripts/loader.js
index eaee097c7..b05ae92b2 100644
--- a/vendor/assets/javascripts/loader.js
+++ b/vendor/assets/javascripts/loader.js
@@ -1,4 +1,4 @@
-var define, requireModule, require, requirejs;
+var define, requireModule, require, requirejs, hasModule;
 
 (function() {
   var registry = {}, seen = {}, state = {};
@@ -32,6 +32,10 @@ var define, requireModule, require, requirejs;
     };
   }
 
+  hasModule = function(name){
+    return !!registry[name];
+  };
+
   requirejs = require = requireModule = function(name) {
     if (state[name] !== FAILED &&
         seen.hasOwnProperty(name)) {