// UseReadHeaderTimeout configure read header timeout
func (srv *Server) UseReadHeaderTimeout(d time.Duration) *Server {
	srv.ReadHeaderTimeout = d
	return srv
}

// UseHandler configure final handler for this HTTP *Server
func (srv *Server) UseHandler(h http.Handler) *Server {
	srv.Handler = h
	return srv
}

// UseTLSConfig pass configured TLSConfig for this HTTP *Server

		{[]string{nonLoopBackIP + ":9000"}, handler, getCert},
		{[]string{"127.0.0.1:9000", nonLoopBackIP + ":9000"}, handler, getCert},
	}

	for i, testCase := range testCases {
		server := NewServer(testCase.addrs).
			UseHandler(testCase.handler)
		if testCase.certFn != nil {
			server = server.UseTLSConfig(&tls.Config{
				PreferServerCipherSuites: true,
				GetCertificate:           testCase.certFn,
			})
		}
		if server == nil {

		}
		// Allow grid to start after registering all services.
		close(globalGridStart)
		close(globalLockGridStart)

		httpServer := xhttp.NewServer(getServerListenAddrs()).
			UseHandler(setCriticalErrorHandler(corsHandler(handler))).
			UseTLSConfig(newTLSConfig(getCert)).
			UseIdleTimeout(globalServerCtxt.IdleTimeout).
			UseReadHeaderTimeout(globalServerCtxt.ReadHeaderTimeout).