Auto refresh Web App 2.0 if session has disconnected (and removed)

When a WebSession has ended, due to timeout or other means the session path gives 404 (internally), if we go back to the browser tab (that was still open) shouldn’t this auto-refresh (knowing that the session is no longer available)? In this case i’m the user but i never meant to disconnect, so i have to manually refresh the page to get a new session active ? I believe in Web 1.0 the auto-refresh option was added ?

Was this forgotten or changed by design? @Greg_O_Lone ?
I’m interested to know if there is actually a flag that changes this behavior?