title: Easiest way to add file upload progress bar (paperclip) Apache/Paperclip/Rails
body: <p>is there an easy upload progress bar example for rails upload based on paperclip and apache server? The examples I've seen so far are either outdated or really confusing to me. </p>
  
  <p>Appreciate your help! </p>
  
  <p>Pier. </p>