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facebook app getting redirected out canvas view

Answer 1

A:

I had this problem awhile back. Two things to try:

Make sure there are no characters / whitespace before your opening <?php tag (it should be first in the file)
Do you call require_frame() ?

Eric 2010-01-01 22:15:14

what is require_frame?

amit 2010-01-02 21:51:22

require_frame is a facebook api function that tells facebook whether to display your page in its frame or just your page

Eric 2010-01-02 22:11:35

Answer 2

A:

try putting this code on top of your page:

ob_start();

This should solve the problem of 'headers already sent' error at least.

Sarfraz 2010-01-02 05:34:30

Answer 3

A:

There is a known reason for this but it takes some investigation to find. IIRC, what happens is that when someone changes pages inside your iframe, you are making another require_login call. the FB client tries to use available data to authenticate - post / get / cookies - but if it fails it will redirect to an fb login. If the user is already logged in and authorized your app, this will instantly (invisibly) redirect back to your app, but there is a bug on facebook's end (I think) that causes it to redirect to your callback url instead of your canvas url, hence popping out of frame.

Solution: pass the fb_ get params in your query string along to every page. Basically take everything starting with "fb_" in the url and tack it on to all of your links. This gives the api client something else to validate with.

Tesserex 2010-01-05 20:59:38

Answer 4

+1 A:

try this link.... you will definitely get the solution :D

http://www.foobots.net/breakouts.html

enjoy

RSTanvir 2010-01-12 09:00:00

thanks a lot. this was really helpful. except i couldnt get option $4 to work. i am confused about the $parms part. can you help?

amit 2010-01-17 21:45:03

hey amit, sorry for late reply :)the $parms part is simply a url parameter, which you need to append with your every page link. hope this help :)

RSTanvir 2010-01-20 15:31:21

Answer 5

A:

http://www.facebook.com/login.php?v=1.0&api_key="xxxxx"&next=http://someurl.com/user.php&canvas=1";

adding canvas=1 seems to do the trick. Keeps it within the canvas and doesn't open the callback url.

gnosio 2010-07-07 01:22:26

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