I’ve used openidconnect.net quite a few times before.
it seems flawed now - it keeps forgetting the client ID and secret I enter, and reverts to defaults.
Defaults:
Client ID kbyuFDidLLm280LIwVFiazOqjO3ty8KH
Client secret 60Op4HFM0I8ajz0WdiStAbziZ-VFQttXuxixHHs2R7r7-CW8GR79l-mmLqMhc-Sa
Similar to what was reported here a couple of months ago: Openidconnect.net is broken?