Facebook iframe application form redirect

I posted some of this a bit ago.

The problem is that my for开发者_运维技巧m inside the iframe application is redirecting away from facebook, also i put a target="_top" to it.

<form action="http://xample.com/index.php" method="post" target="_top">

also i think it is a common question i found no result on stackoverflow or with the help of google.

maybe someone has a lmgtfy link ;)

thx sven

It's just to simple.

<form action="http://xample.com/index.php" method="post" target="iframe_canvas">