I'm having some problems with iformless.IRedirectAfterPost. The first time I post my form, I see my results' page with the data posted. But when I use "back" on my browser and I try to post my form again, the IRedirectAfterPost doesn't seem to be done. It bring me back the page with the form posted (no data in my fields). Only once out of two my form is posted correctly even if I'm using the back button. I didn't find out how to fix it.