}

	// Guard against excessive buffering
	if len(h.headerBuffer)+len(b) > maxHeaderBytes {
		return 0, fmt.Errorf("header size limit exceeded")
	}

	// Accumulate into headerBuffer
	h.headerBuffer = append(h.headerBuffer, b...)

	// Attempt to parse http response headers
	var headerBytes, bodyBytes []byte
	if i := bytes.Index(h.headerBuffer, lfCRLF); i != -1 {
		// headers terminated with \n\r\n