I\'m using an (I know, I know, ...) in my app (single-page application with ExtJS 4.2) to do file downloads because they contain lots of data and
If you are doing a file download from a iframe the load event wont fire :) I was doing this a week ago. The only solution to this problem is to call a download proxy script with a tag and then return that tag trough a cookie then the file is loaded. min while yo need to have a setInterval on the page witch will watch for that specific cookie.
// Jst to clearyfy
var token = new Date().getTime(); // ticks
$('
in your proxy script add the cookie with the name set to the string sent bay the token url parameter.