Support OIDC Logout endpoints

[farsett]

Description

I use Keycloak as an OIDC provider, but I have encountered an issue where specifying end_session_endpoint in the OIDC Headplane configuration does not work. I want the user to be automatically logged out of their Keycloak account when they log out of Headplane, but this is not happening.
At the moment, I have simply set a short session lifetime in Keycloak, but it would be very convenient to trigger a redirect on logout. Thank you in advance!

[dxkrs]

I might have encountered a similar problem.
I set the OIDC with keycloak and login success, but error in logout. To click the logout button, it will go to the "Unexpected Server Error" Page, then it will go back to the latest webpage with login success state.

And the error message in the docker logs -f headplane will output thest:

Error: Bad Request
    at singleFetchAction (file:///app/build/server/assets/index-DiL_eC9a.js:6023:44)
    at handleSingleFetchRequest (file:///app/build/server/assets/index-DiL_eC9a.js:6358:44)
    at requestHandler (file:///app/build/server/assets/index-DiL_eC9a.js:6294:21)
    at requestHandler (file:///app/build/server/assets/index-DiL_eC9a.js:6614:11)
    at file:///app/build/server/assets/node-D8dx9k-W.js:85502:11
    at file:///app/build/server/assets/node-D8dx9k-W.js:85503:5
    at dispatch (file:///app/build/server/assets/node-D8dx9k-W.js:32:17)
    at file:///app/build/server/assets/node-D8dx9k-W.js:32:40
    at file:///app/build/server/assets/node-D8dx9k-W.js:85363:11
    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)

The docker image version is 0.6.2.

I can't find a way to successfully log out. I tried clearing all data related to the website in the browser's developer tools, but after refreshing, it still shows a successful login status.

[tale]

Currently log out is not supported for OIDC authentication, which I think is not a good practice but just never had the time to add support/correct. I'll add it to our next milestone and investigate. Thank you!

[dxkrs]

So what is the correct (or recommended) way to log out now? @tale