Facebook only allows to redirect to https:// sites after using the OAuth Client Token Flow(2.12).
(Settings in the developer account of Facebook forces this behavior!)
The default FacebookRedirectUrl in appsettings.json redirects to http://localhost:9821/FacebookManager/Facebook. This blows up the whole Authentication-Process.
But this process works on http://www.socioboard.com .
Did I something wrong, or is the code on github.com not up to date?
P.S. Changing everything to https:// in the appsetttings.json files does not work.