"Password can't be blank" after Google login setup

[Timelord]

Hey gang. Tonight I tried my hand at turning up Google OAuth to my site. I followed the instructions here, however when attempting to login to the site, it is telling me that the password cannot be blank. Weird, as I can authenticate against Google when it asks me (Discourse pops a window for accounts.google.com).

As you can see from the screenshot, Google accepts the creds, but still wants a password. Any ideas?

[Timelord]

Hrmm, I must be missing something on the Discourse side, as I am getting the same results with Facebook Auth.

[codinghorror (Jeff Atwood)]

You might double and triple check that you followed the instructions precisely.

[hans_mayer]

I am getting the complete same error with the basic oauth2 plugin. I tried the instructions multiple times, but nothing helped. How have you solved this problem? Or does anyone else know how to solve this? Thank You!