This Google App engine allows you to minimize the amount of HTTP to your server and optimize your front end performance by combining your Spry requests.
You have access all default Spry files that you would find the \"include\" folder of the Spry download package and all required css files for the widgets.
http://config.com/js?f=[version number: 1.6/][filename, use / to separate multiple files]. Example: http://config.spry-it.com/js?f=1.7/data/1.6.1/domutils/. You can also use them on a secure server just change the http protocol to https.