Do the above work of adding the site and then the url.
I think the layout of facebook has changed little bit so also do the below things.
- Go to developers.facebook.com -> your app
- Go to Settings->Advanced.
- Under the Security->Valid OAuth redirect URIs, insert all the uri's your app is supposed to redirect to. For example (
http://localhost:1443/cas/login, https://localhost:2443/cas/login, http://rajanpupa.com/cas/login
etc)
- That should do it.