Enlever les WordPress Cookies pour les non-connectés avec Varnish

if(req.http.cookie !~ "wordpress_logged_in" ) {
        set req.http.Cookie = regsuball(req.http.Cookie, "wp-settings-(1|2)=[^;]+(; )?", "");
        set req.http.Cookie = regsuball(req.http.Cookie, "wp-settings-time-(1|2)=[^;]+(; )?", "");
        set req.http.Cookie = regsuball(req.http.Cookie, "wordpress_test_cookie=[^;]+(; )?", "");
        set req.http.Cookie = regsuball(req.http.Cookie, "comment_author_[a-z0-9]+=[^;]+(; )?", "");
        set req.http.Cookie = regsuball(req.http.Cookie, "comment_author_email_[a-z0-9]+=[^;]+(; )?", "");
        set req.http.Cookie = regsuball(req.http.Cookie, "comment_author_url_[a-z0-9]+=[^;]+(; )?", "");
        if (req.http.cookie ~ "^$") {
                unset req.http.cookie;
        }
}