Google OpenID: the page you requested is invalid
google-openid, openid
Solution
The error was literally triggered by not including the `openid.claimed_id` and `openid.identity` parameters, which must be set to `"http://specs.openid.net/auth/2.0/identifier_select"`. With these set, I get another error, which can be resolved by also filling out `openid.realm`, with the same value as `openid.return_to`.
Even though I also implemented RP discovery, Google does not appear to use it.
Problem
I'm writing a Relying Party, and use the Google provider. Yadis leads me to https://www.google.com/accounts/o8/ud, I create an association, and redirect the user's browser to that URL (HTTP 307), and fill in the following query parameters: - openid.ns: `http://specs.openid.net/auth/2.0` - openid.mode: checkid_setup - openid.assoc_handle: value_received_from_association, - openid.return_to: `http://my_host:and_port/?returned=1` AFAICT, I have filled out everything I'm supposed to provide, yet my user's browser gets a page from google which says "The page you requested is invalid". In what way?