User blog comment:DaNASCAT/Update Your CSS and JavaScript To Speed Up Your Wiki/@comment-166269-20120822233320/@comment-166269-20120823035621

The same advantage could have been had by introducing a feature for admins to specify additional CSS files to be included, then the server just checks the list of specified CSS files, bundles and minifies them, and sends the minified, combined file on its way. Everything server-side, no FOUC while we wait for the appropriate JS event to fire, no danger of a broken script causing unstyled content.