cookie.vcl

// cookie-stripping for GA og LiveChat
set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(_[_a-z]+|lc_|has_js|hasVisited|autoinvite_callback)=[^;]*", "");
// Remove a ";" prefix, if present.
set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", "");

if (req.http.Cookie == "") {
  remove req.http.Cookie;
}