Didn't know exactly which forum topic to post this in, but here is the problem. We have built a Facebook app that utilizes the Canvas and Tab pages. The site has a form on it and everything works exactly like it should. We are now being requested to change the form's action from a relative link to an absolute link pointed to the secure version of the form. Example:

Page hosted on http://app.example.com/form

PHP Code:
<form method="post" action="/form">... </form
to be changed to:

PHP Code:
<form method="post" action="https://app.example.com/form">... </form
This is done, but then when the form is submitted, we get an error from Facebook that the web page has a redirect loop. Is there any way around this? The form must be encrypted, and changing the regular tab page to https:// does not work. Thank you, any help is appreciated.