Facebook test mvc application permission page redirecting

I am recently started to learn the facebook sdk . However, I went to run the test mvc3 application on a test facebook iframe app. changed appid,secret,app url. Homepage showing fine on facebook iframe, but the about page(which actually using the authentication implementation) is redirecting for permission, i 开发者_运维问答gave it permission, and still redirects back to permission page again and again.. Did any of you faced same problem? How to solve this issue plz?

Regards

you really need to shift to 5.0 (if not) as i was getting similar problem and resolved by using their example and 5.0 sdk