title: Is there any event/way we can know when a file has finished downloading?
body: <p>This question has been asked a much time, but I am unable to get a perfect answer to implement. So I give it a try asking one more time.</p>
  
  <p>Suppose you wish to show a message when your file has be completely downloaded from the server. Yes, there are possible ways for uploading a file, and even showing a progress bar on download, but is there any particular instance/information/event which should tell when the download has been completed?</p>
  
  <p>All I yet know is that might be it can be implemented with the help of cookies may be. But how?</p>