After joining Google+, the profiles.google.com/username
URL redirects to plus.google.com/[long number]/posts
. When trying to log in on SO using the profiles.google.com
URL, I got (line breaks for clarity):
Unable to log in with your OpenID provider: The OpenID Provider issued an assertion for an Identifier whose discovery information did not match. Assertion endpoint info: ClaimedIdentifier: https://profiles.google.com/username ProviderLocalIdentifier: https://profiles.google.com/username ProviderEndpoint: https://www.google.com/accounts/o8/ud?source=profiles OpenID version: 2.0 Service Type URIs: Discovered endpoint info: [{ ClaimedIdentifier: https://plus.google.com/longnumber ProviderLocalIdentifier: https://plus.google.com/longnumber ProviderEndpoint: https://www.google.com/accounts/o8/ud?source=profiles OpenID version: 2.0 Service Type URIs: http://specs.openid.net/auth/2.0/signon http://openid.net/srv/ax/1.0 http://specs.openid.net/extensions/ui/1.0/mode/popup http://specs.openid.net/extensions/ui/1.0/icon http://specs.openid.net/extensions/pape/1.0 },]