t.Errorf("request to bad proxy = %v; want 502 StatusBadGateway", res.Status)
	}

}

// Issue 16875: remove any proxied headers mentioned in the "Connection"
// header value.
func TestReverseProxyStripHeadersPresentInConnection(t *testing.T) {
	const fakeConnectionToken = "X-Fake-Connection-Token"
	const backendResponse = "I am the backend"

	// someConnHeader is some arbitrary header to be declared as a hop-by-hop header