Basic Authentication & logout

[Andrea Palmeri]

Hy everybody, I'm using Apache to and mod_perl to develop a reverse proxy which authenticates users before forwarding requests to the backend servers.    My question is: how do I logout users which have been authenticated ? (responding to an html link)   I know that using    $r-> note_basic_auth_failure; return AUTH_REQUIRED;   I invalidate the user authencation and ask credentials once again, but I would like to just to invalidate the user authencation whitout prompting the user for credentials.   I have tried $r-> note_basic_auth_failure; $r->header_out(Location=>$url); return REDIRECT;   but it doesn't work   Any help in appreciated Thanks