Kiosk Watchdog

Returns a kiosk browser to its configured home URL when a session is abandoned (e.g. user walks away mid-login).

A user starts a transaction at the kiosk → gets redirected to an SSO / login page → realizes they don't have their phone for multi-factor auth → walks away. The browser sits on the login page until the next person walks up, who now sees a half-completed login session belonging to someone else. The watchdog detects "off the kiosk URL for too long" and silently sends the tab back home.