if len(header) > 0 {
			dialer.Header = ws.HandshakeHeaderHTTP(header)
		}
		dialer.TLSConfig = tls

		conn, br, _, err := dialer.Dial(ctx, toDial)
		if br != nil {
			ws.PutReader(br)
		}
		return conn, err
	}
}

// ConnectWS returns a function that dials a websocket connection to the given address.
// Route and auth are added to the connection.