https not working with http profile

The redirect rewrite option in the HTTP profile is designed to catch 30x redirect responses and change them to the correct protocol (ie. HTTP references changed to HTTPS). The fact that altering this setting has an effect on your application somewhat suggests an application layer issue (not SSL). While it's still not totally clear what's going on, I think the next step is to get a client side HTTP capture (using something like Fiddler or IEWatch). You're looking for any responses that contain references to itself by an incorrect (potentially local) name or using HTTP:// instead of HTTPS://.