Previously an error loading the discovery document would raise an exception. Now, it will display an error to the user, and log the error for site admins to view at `/logs`. Specs are updated and improved accordingly.
This moves the discovery document fetching out of OmniAuth and into Discourse. This makes it available for the upcoming rp-initiated-logout support.
This makes use of Faraday middleware to log precise details about all requests made by the OAuth2 gem. This should make it easier to debug configuration issues
The most common use case is when you want the IDP to start with a specific screen (e.g. signup, rather than sign in). This change has no effect by default, you must add the parameter names to the openid_connect_authorize_parameters site setting.
David Taylor