Third party cookies and facebook app inside an iframe, getUser fails

[HeatherC]

I have this problem that is driving me crazy, I hope it will help also anybody that got to my point.After reading a lot, apparently all the "hacks" of the past (including the p3p headers) do not work anymore on safari after the next update, so I rewrote everything to append a session id inside a GET, all is fine, apart that apparently without third party cookies facebook do not work anymore:\[code\]$user = $facebook->getUser(); var_dump($user);\[/code\]This returns the expected result with third party cookies activated, while returns int(0) without cookies activated, why?Is there a workaround for this?Thank you!