// graceful close, even if there was some unparse-able
			// data before the close.
			sc.re = ErrPersistEOF
			return nil, sc.re
		} else {
			sc.re = err
			return req, err
		}
	}
	sc.lastbody = req.Body
	sc.nread++
	if req.Close {
		sc.re = ErrPersistEOF
		return req, sc.re
	}
	return req, err
}

// Pending returns the number of unanswered requests

	response, err := proxyClientConn.Do(&proxyReq)
	//nolint:staticcheck // SA1019 ignore deprecated httputil.ErrPersistEOF: it might be
	// returned from the invocation of proxyClientConn.Do
	if err != nil && err != httputil.ErrPersistEOF {
		return nil, err
	}
	if response != nil && response.StatusCode >= 300 || response.StatusCode < 200 {