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