> bodyHeaderResponse
`httputil.DumpResponse`
<
// :
req, _ := http.NewRequest("GET", " nil)
resp, _ := (&http.Client{}).Do(req)
defer resp.Body.Close()
dump, _ := httputil.DumpResponse(resp, false)
fmt.Printf("%q\
", dump)
* * *
`io.TeeReader(resp.Body, os.Stderr)` stderr pipe viewer Go