重定向成功没有跳转页面

[pkg2001]

// 1. Get Authorization Code
func GetAuthCode(w http.ResponseWriter, r *http.Request) {

params := url.Values{}
params.Add("response_type", "code")
params.Add("client_id", AppId)
params.Add("state", "test")
str := fmt.Sprintf("%s&redirect_uri=%s", params.Encode(), redirectURI)
loginURL := fmt.Sprintf("%s?%s", "https://graph.qq.com/oauth2.0/authorize", str)
http.Redirect(w, r, loginURL, http.StatusOK)
fmt.Println("Login successful")

}

// 2. Get Access Token
func GetToken(w http.ResponseWriter, r *http.Request) {
fmt.Println("Getting")
code := r.FormValue("code")
params := url.Values{}
params.Add("grant_type", "authorization_code")
params.Add("client_id", AppId)
params.Add("client_secret", AppKey)
params.Add("code", code)
str := fmt.Sprintf("%s&redirect_uri=%s", params.Encode(), redirectURI)
loginURL := fmt.Sprintf("%s?%s", "https://graph.qq.com/oauth2.0/token", str)

response, err := http.Get(loginURL)
if err != nil {
	w.Write([]byte(err.Error()))
}
defer response.Body.Close()

bs, _ := ioutil.ReadAll(response.Body)
body := string(bs)

resultMap := convertToMap(body)

info := &PrivateInfo{}
info.AccessToken = resultMap["access_token"]
info.RefreshToken = resultMap["refresh_token"]
info.ExpiresIn = resultMap["expires_in"]

GetOpenId(info, w)

}gin框架接入的时候为什么没有扫码的页面