[keycloak-user] Error when using bookmarked login page

Hello, I am trying to secure a single page application with Keycloak. The setup is the following: There are a few microservices and Keycloak behind an Apache Reverse Proxy, which has mod_auth_openidc installed. The authentication works fine. When a user visits my page www.example.com he will be redirected to www.example.com/auth/realms/myrealm/protocol/openidc- connect/auth?response_type=code&many_more=parameters. The Keycloak login-page is presented to the user and when he enters his credentials correctly he is redirected to my page www.example.com/main and can use the application. So far, so good. Now the problem is, that a user might want to bookmark my site right after visiting it. That means that he will bookmark the Keycloak login-page. But there are some parameters (like state and nonce) in the login-page url that are only valid for the initial login-session. Therefore, visiting the bookmarked page at a later time will cause an error and the user will not be able to access my page. Do you have any tips on how I can fix this problem? Are there common ways to allow a user to visit a bookmarked login page without breaking the authentication flow? Thanks, Patrick