code: func (h *HTTPBin) SetCookies(w http.ResponseWriter, r *http.Request) {
  	params := r.URL.Query()
  	for k := range params {
  		http.SetCookie(w, &http.Cookie{
  			Name:     k,
  			Value:    params.Get(k),
  			HttpOnly: true,
  		})
  	}
  	w.Header().Set("Location", "/cookies")
  	w.WriteHeader(http.StatusFound)
  }
docs: // SetCookies sets cookies as specified in query params and redirects to
  // Cookies endpoint