(function() {
  'use strict';

  define(['sockjs'], function (sockjs) {
    return sockjs.createServer();
  });
}());

(function() {
  'use strict';

  define(['sockjs'], function (sockjs) {
    var sockjs_opts = {
      sockjs_url: 'http://cdn.sockjs.org/sockjs-0.3.min.js'
    };

    return sockjs.createServer(sockjs_opts);
  });
}());

--- 
+++ 
@@ -2,10 +2,6 @@
   'use strict';
 
   define(['sockjs'], function (sockjs) {
-    var sockjs_opts = {
-      sockjs_url: 'http://cdn.sockjs.org/sockjs-0.3.min.js'
-    };
-
-    return sockjs.createServer(sockjs_opts);
+    return sockjs.createServer();
   });
 }());
Remove unused SockJS server-side config options
