define([
  'views/root',
  'backbone'
], function (RootView, Backbone) {
  return new (Backbone.Router.extend({
    routes: {

    }
  }));
});

define([
  'views/root',
  'backbone'
], function (RootView, Backbone) {
  return Backbone.Router.extend({
    routes: {

    }
  });
});

Return router class, instead of instance
Return router class, instead of instance
