Hi,
As in post below when I click on the button for authenticating using a third party oauth2 endpoint it lists the content of Moodle's /moodle/auth/oauth2 folder instead redirecting to the external auth endpoint that has been set.
https://moodle.org/mod/forum/discuss.php?d=354176
Best regards,
Jerome
The resulting link for the button is http://xxx/moodle/auth/oauth2/login.php?id=3&wantsurl=http%3A%2F%2F1xxx%2Fmoodle%2F%3F&sesskey=8mZDh3OCPF
however when we click on it, the browser's url shows http://xxx/moodle/auth/oauth2/?client_id=4_xxx&response_type=code&redirect_uri=http%3A%2F%2Fxxx%2Fmoodle%2Fadmin%2Foauth2callback.php&state=%2Fauth%2Foauth2%2Flogin.php%3Fwantsurl%3Dhttp%253A%252F%252Fxxx%252Fmoodle%252F%26sesskey%3D8mZDh3OCPF%26id%3D3&scope=openid%20profile%20email
(login.php has been removed from the url).
If i add it manually the response says there is a missing id parameter, I don't know what it is (the client_id is present).
I managed to fix the problem by clearing the moodle caches (search for clear all caches).
