How can show a progress bar? I do upload on ajax enabled page. I can see that it makes post request. How can i acces to underlying xmlhttprequest or jquery object to maybe obtain a progress like it's made, for example, in this plugin https://github.com/malsup/form/blob/master/jquery.form.js (line 318). Or if it's made by normal post in a hidden iframe what should i do?
Our clients will upload large files on slow connection and i need to a feedback as progress bar.