if( $this->{_cgisession} ) {
        $url = $this->_rewriteURL( $url )
          unless( !$TWiki::cfg{Sessions}{IDsInURLs} || $this->{_haveCookie} );

        # This usually won't be important, but just in case they haven't
        # yet received the cookie and happen to be redirecting, be sure
        # they have the cookie. (this is a lot more important with
        # transparent CGI session IDs, because the session DIES when those
        # people go across a redirect without a ?CGISESSID= in it... But
        # EVEN in that case, they should be redirecting to a URL that
        # already *HAS* a sessionID in it... Maybe...)
        #
        # So this is just a big fat precaution, just like the rest of this
        # whole handler.
        my $cookie = CGI::Cookie->new( -name => $CGI::Session::NAME,
                                       -value => $this->{_cgisession}->id(),
                                       -expires => '+3Y',
                                       -path => '/' );
        push( @{$this->{_cookies}}, $cookie );
    }

    if( $TWi