url := "http://en.wikipedia.org/"
req, err := http.NewRequest(method, url, nil)
req.Header.Add("Accept-Language", "en-US,en;q=0.8")
req.Header.Add("Referer", "http://www.wikipedia.org/")
req.Header.Add("Accept-Encoding", "deflate, gzip")
res, err := client.Do(req)
body, err := ioutil.ReadAll(res.Body)
fmt.Println(string(body))