closes.Add(1)
				},
			}, nil
		}

		c.Transport.(*Transport).Proxy = ProxyURL(pu)
		c.Transport.(*Transport).OnProxyConnectResponse = func(ctx context.Context, proxyURL *url.URL, connectReq *Request, connectRes *Response) error {
			if proxyURL.String() != pu.String() {
				t.Errorf("proxy url got %s, want %s", proxyURL, pu)
			}

			if "https://"+connectReq.URL.String() != ts.URL {