I'm working on logout from Identity Server 4 and Okta as External Provider using OpenID Connect. I'm going to make next logout request from IdenittyServer to Okta:
https://dev-7142441.okta.com/login/signout?fromURI=https://localhost:44309/
This reqeust is good to me because it is not requred id_token. Questions is: how can I setup callback url in this case?