[keycloak-dev] Provide a Link to go Back to The Application on a Timeout

We have the issue that after session timeout, the page "An error occurred, please login again through your application." can be shown. This is even worse when there is no link to go back to the application as users might be confused what to do. Details in https://issues.jboss.org/browse/KEYCLOAK-4016 . This is already handled in many cases as when authentication session is expired, it is always restarted from the KC_RESTART cookie. However there are still cases when this error is shown, which is when the restart from the cookie failed. This can happen when browser history (including cookies) was cleared or when user restarted the browser (as the KC_RESTART cookie is not persistent). Some possibilities to solve: 1) Make the KC_RESTART cookie persistent. That will handle browser restart, however it won't handle the case when browser history is deleted 2) Add client-id to every link as Stefan Baust suggested. Then we can add the link to client base uri on the page. This is more work with the possibility of error-prone if we miss to add the client-id to some link. Also we will be able to provide the link just if client has "base-uri" configured. 3) Add the link to the account management application page. After successful login will be shown list of applications in account management and user can click to his favourite application. Message would need to be changed to something like "An error occurred, please login again through your application or go to the <link>list of applications<link> and select your application after login." My preference is 3, 2, 1. WDYT? Any other ideas? Thanks, Marek