Bug HTTP Error 405 in Spring Canvas in 1.1.0.M2 and not in 1.1.0.BUILD-SNAPSHOT

Bug HTTP Error 405 in Spring Canvas in 1.1.0.M2 and not in 1.1.0.BUILD-SNAPSHOT

Steps to recreate error 1.1.0.M2->

1. Log out of Facebook
2. Go to http://apps.facebook.com/springsocialcanvas/
3. Enter user credential
4. Error is recreated

Can someone help in fixing the issue?