We try to use Bootstrap, JQuery, AngularJs and other third party js libraries. Right now, some libraries provide the CDN access, for example, bootstrap, you can add this <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3r...