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Area

core

Describe the bug

Today I updated from 24.0.5 to 25.0.0 on out test system. Update using the upgrade guide worked smoothly, thanks for that.
But now I see a RESTART_AUTHENTICATION_ERROR event every time I try to login in a private browser window (Edge, Firefox, Chrome) directly after login. The client gets an error response afterwards.

Version

25.0.0

Regression

• The issue is a regression

Expected behavior

Login without event and with success response to client.

Actual behavior

Event RESTART_AUTHENTICATION_ERROR directly after login and error response to client.

How to Reproduce?

• Close all browser windows
• Start a new private browser window
• Navigate to client
• Client redirects to Keycloak
• Login using username/password
• Event RESTART_AUTHENTICATION_ERROR will be logged, Keycloak redirects to client with error response

Anything else?

Issue occurs on all major browsers (Edge, Chrome, Firefox). If no private browser window is used, it will work without any issue.