ReasonPhrase：'禁止'HttpResponseMessage winrt

Question

我收到此错误：ReasonPhrase：响应变量中的'Forbidden'：

HttpClient httpClient = new HttpClient();
HttpResponseMessage response = await httpClient.GetAsync(uri);
string result = await response.Content.ReadAsStringAsync();

除了我用它与其他网址，它工作正常！有什么想法吗？