Login and maintain session with Toolkit v2.0

Nov 18, 2008 at 9:37 PM
It seems that Facebook Toolkit v2.0 does most of the housekeeping for logging in and maintaining sessions, and my iframe app seems to work okay running off of localhost. However, when I run from my website I am getting "Session key invalid or no longer valid" messages. What is the proper way to log in and pass session info across pages with v2.0?

Some best practices would be very helpful! Thanks.