* the query result cursor will both be closed, even if the operation is cancelled or fails.
 *
 * <p>Note that if you don't call {@code closeAsync()}, the captured objects will not be closed. The
 * automatic-closing approach described above is safer.
 *
 * @param <V> the type of the value of this step
 * @since 30.0
 */
// TODO(dpb): Consider reusing one CloseableList for the entire pipeline, modulo combinations.

   * Confirm that we don't send the Proxy-Authorization header from the request to the proxy server.
   * We used to have that behavior but it is problematic because unrelated requests end up sharing
   * credentials. Worse, that approach leaks proxy credentials to the origin server.
   */
  @Test
  fun noPreemptiveProxyAuthorization() {
    server.useHttps(handshakeCertificates.sslSocketFactory())
    server.enqueue(MockResponse(inTunnel = true))