Extjs, Handling Success Or Failure When Doing A Standard Submit In A Form

I'm downloading a file from a servlet with a form submit in Ext, but when I try to handle the success or failure of my submit it just never get fired and my waitMsg goes on forever

Solution 1:

You can't handle success or failure, because once you submit it, it works like a normal old HTML form post, the browser changes the URL to a new page, so you can never know the result.