Error 500 with Google Account authentication when user is signed to Google with multiple accounts

[radomir]

Hi,

It looks like Google's authentication mechanism for GAE is broken
(we're using Java) when user is signed in to Google with multiple
accounts. User reaches Google Accounts but after selecting an account
to sign-in with, Google's service returns a page with:

Error: Server Error
The server encountered an error and could not complete your request.
If the problem persists, please report your problem and mention this
error message and the query that caused it.

There's nothing in the logs. We've reported a production issue:
http://code.google.com/p/googleappengine/issues/detail?id=7048

(BTW, if user is signed in to Google with just one account,
authentication works.)

As we can reproduce this with two applications in productions, others
relying on Google authentication service should check if their
applications are affected by this issue too.

Regards,
Radomir

[Zachary Yaro]

I am having the same issue.  I have a Python app that lets users log in with their Google accounts.  Any user with one account can sign in with no problem, but users with multi sign in enabled get the error described below.  Does anyone know how to fix this?  It seems like all the threads on this topic have gone unanswered...

Thanks,

—Zachary “Gamer_Z.” Yaro