http.go
func (resp *Response) Read(r *bufio.Reader) error {
	return resp.ReadLimitBody(r, 0)
}
func (resp *Response) Read(r *bufio.Reader) error {
	return resp.ReadLimitBody(r, 0)
}
// Read reads response (including body) from the given r.
//
// io.EOF is returned if r is closed before reading the first header byte.