ready := make(chan struct{})
	ctx, cancel := context.WithCancel(context.Background())
	res.cancel = cancel
	for i, host := range hosts {
		manager, err := NewManager(ctx, ManagerOptions{
			Dialer: dialer.DialContext,
			Local:  host,
			Hosts:  hosts,
			AuthRequest: func(r *http.Request) error {
				return nil
			},
			AddAuth:      func(aud string) string { return aud },
			BlockConnect: ready,
		})
		if err != nil {