I have a connected app with an outdated callback URL. I need a refresh token, so I updated the callback URL. Even after one hour the change is still not effective. When I call
as the response. When I use my old callback URL I'm redirected to the login page, but the callback times out, because there's no webserver reachable with the old URL.
I tried the same in a sandbox for the same instance and with https://test.salesforce.com/services... two days ago already, it also still hasn't applied the new callback URL setting. What am I missing?