By default, the Studio client shows a local login page if it detects that no user is logged in. Because this behavior is not appropriate in an SSO setting, you should set the Studio backend property studio.loginUrl to the SSO login page. The Studio frontend will then forward the user to the login page, if no current session can be found.

In our OAuth2 example, we set the studio.loginUrl to /rest/login to use the built-in Spring Security login page. The prefix rest is necessary because Studio client and server are deployed separately but are accessed through a common proxy and everything below /rest is forwarded to the server.