title: Why are the client side files referred to as static and the server side not?
body: <p>JavaScript, html, css files, images, videos etc are referred to as static files and  are usually cached on a CDN (please correct me if I'm wrong).</p>
  
  <p>However I can't understand why server side files are not static? They can still be js files if the back-end is using Node JS, or java files or c# etc. Is it because they are handling requests? If that's the case why answering requests is not static?</p>
  
  <p>Thank you very much for the time spend answering this rather silly question!</p>