Some startup information is to be printed in the index.html: loginState (UUID to be sent with every request), requestError (string in user language, empty/undefined/null if no error), and idpType (enum: 'root', 'umbrella', 'tenant' string). For umbrella type, the umbrellaId is added. For tenant type, the tenantId is added. If coming back from an external IDP or Kerberos, a sessionId is given (to jump to the correct step). A "logout" parameter (default: false) indicates logout. Some parameters can be derived from another one:

• userId from sessionId
• directoryId from userId or sessionId
• tenantId from directoryId, userId or sessionId