File download complete callback

Question

I would like to able to track, purely on the client side, the progress of a file download, especially file download completion.

Is there a JavaScript API that allows me to define a callback upon file download completion?

Answer 1

No, this is not possible using pure javascript. There are some techniques though involving using cookies from the server and continuous poll from the client. I've illustrated an example here:

Hide image using Javascript after controller action is complete MVC3