}

func (a *auditResponseWriter) WriteHeader(code int) {
	a.processCode(code)
	a.ResponseWriter.WriteHeader(code)
}

func (a *auditResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
	// fake a response status before protocol switch happens
	a.processCode(http.StatusSwitchingProtocols)

	// the outer ResponseWriter object returned by WrapForHTTP1Or2 implements