[keycloak-user] Springboot adaptor issue with browser bookmark

[Hylton Peimer]

We have a SpringBoot application secured by Keycloak using the
KeycloakWebSecurityConfigurerAdapter.

When the Keycloak login page is reached the URL contains a query string
with "state" and "session_state".

Some of our users bookmark this login page in their browser, which stores
the query string (including state & session_state).

When they return to the page using the bookmark, they get an error.

How can I avoid this situation?

Or if there is no way, does it make sense to catch the error and redirect
the user to the correct page without the problematic query string?