Redirection loop problem at facebook iframe application

Posted by Sniff on Stack Overflow See other posts from Stack Overflow or by Sniff
Published on 2010-02-06T01:33:40Z Indexed on 2010/06/18 8:03 UTC
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I do IFrame application for facebook.

Problem is: any link inside it causes redirect loop

Link is: http://mydomain/mypage?fb_sig=[what I got from $_GET['fb_sig']] (to test I link to the same page as my loaded canvas is loaded from)

when I click on it, my server returns:

<script type="text/javascript">
top.location.href = "http://www.facebook.com/login.php?api_key=5dc632fcef992470341178f492f79b93&v=1.0&next=http%3A%2F%2Fthiismydomain%2Ffacebook%2F%3Ffb_sig%3D96a5c47f133eadcfbba4abf82e5311e0%26page%3D1";
</script>

then it goes to corresponding page, and facebook returns

Location: http://thisismydomain/facebook/?fb_sig=96a5c47f133eadcfbba4abf82e5311e0&page=1&auth_token=ce4cf4968f91cace5b3e915f5b658984

then, my server replies with

<script type="text/javascript">
top.location.href = "http://www.facebook.com/login.php?api_key=5dc632fcef992470341178f492f79b93&v=1.0&next=http%3A%2F%2Fthisismydomain%2Ffacebook%2F%3Ffb_sig%3D96a5c47f133eadcfbba4abf82e5311e0%26page%3D1%26auth_token%3Dce4cf4968f91cace5b3e915f5b658984";
</script>

and back, facebook replies:

Location: http://thisismydomain/facebook/?fb_sig=96a5c47f133eadcfbba4abf82e5311e0&page=1&auth_token=ce4cf4968f91cace5b3e915f5b658984&auth_token=77df653b7949ca39c1a226c82cce8add

and it goes on and one without end.

Should I say that this redirect responce from my server is generated automately (most probaby my facebook php lib)

I have no more ideas why this happends. Any ideas?

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