I've read in a few places that file upload progress is not supported in IE9.
However I notice that gmail has some sort of solution for it. I've read articles from a couple of years ago that it is a flash-based solution but when I got the inspector tool out, I couldn't see any flash objects. I'm wondering whether anything has changed in that time.
Is anybody able to describe how gmail has solved the 'file upload progress' problem in IE9?
preguntado el 24 de agosto de 12 a las 08:08
Assuming you have some kind of session identifying the user, the upload is sent to the server which updates some progress variable in the user's session while the file is being transferred. At the same time, the client polls the progress variable once a second via separate AJAX calls to the server.