title: Can we refer angular 2 files from CDN instead of installing them from nodejs
body: <p>I have an angularjs 2 application. And I dont have nodejs installed (my company has some restrictions about software and it will take them for them to install it).</p>
  
  <p>Can we refer all the angular files from CDN, instead of NPM it from nodejs.</p>
  
  <p>Do we really need nodejs/npm for angularjs 2 to work ?</p>