Using the method at http://groups.google.com/group/web2py/browse_thread/thread/641df72d9f897b1b/31f7a52cfcbdb7da?lnk=gst&q=google+authentication+GAE#31f7a52cfcbdb7da on 1.99.2, I am getting "redirect loop" error in the browser:
This webpage has a redirect loop The webpage at http://localhost:8080/app/default/user/login?_next=/app/default/index has resulted in too many redirects. Clearing your cookies for this site or allowing third-party cookies may fix the problem. If not, it is possibly a server configuration issue and not a problem with your computer. Any replies would be appreciated.