Rackspace and Progress bar
===

I am using the Rackspace API and their FormPost which allows clients to upload files directly on the cloud.
So the form's target is a link they provided (I have no control over this one).
I also wish to have a progress bar for the uploaded files (which currently works).
However, rackspace's link by default makes a redirection when the upload is done, which contains some parameters in the link (error code and error message).
The thing is, since I am using AJAX for the progress bar, the redirection won't work, making me unable to get these parameters.

Do you have any good idea on how to do this ?
I am using PHP.

Thanks a lot !

Olivier

 