You don't want to use CDN?
You can use
F.merge() method for this case because the method can contain a link to external libraries.
F.merge('/js/default.js', 'https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js', '/js/jctajr.min.js', '/js/ui.js', '/js/default.js');
F.merge() downloads external libraries automatically (
.html) and it merges them together as they are defined. So you can use CDN without CDN in your web applications.