One use case is if the scripts are part of a large framework on a 3rd party server. See e.g. the YUI 3 library configurator: http://yuilibrary.com/yui/configura

One use case is if the scripts are part of a large framework on a 3rd party server. See e.g. the YUI 3 library configurator: http://yuilibrary.com/yui/configurator/ http://yuilibrary.com/yui/configurator/