title: Needed advice on how to implement js/css versioning
body: <p>so I am implementing this js/css versioning scheme, where  I basically append a checksum of the js/css file. The strategy which I am thinking of is, basically get this checksum value, then compute the checksum of the file(which I presume may come from the cache), if they match, then the client has the latest files, if not then the client browser will force download that particular file from the server. Is this approach correct?
  Also I wanted to understand the behavior of the script tag, like will the src attr of the script tag, go to the cache first for the js file or to the webserver directly?</p>
  
  <p>Thanks</p>