How does this work? Every ExtJS component has the ability to remotely load and display HTML via the “loader” property, which you use to configure a Ext.ComponentLoader. The ComponentLoader lets you specify your own “renderer”–a function that handles the server response. What we’ve done is create our own “renderer” function that converts the server response–our template file–into an XTemplate. By making it a static function in our utility class, we can easily re-use it throughout the app.