如何从https地址读取XML数据

Question

如何从HTTPS地址读取数据？

当我尝试从http://www.w3schools.com/xml/note.xml获取数据时，我的代码工作正常，但在我尝试访问https://live.af.centurylink.com/PRISMPOC/AFTelephonyRWS/restful/3032971029/call?token=082b96247aa6c2cce2007e9270eeabe1485988d17c3d832553cf562f0f6aef96&maximumnumberofrecords=10时失败

有错误：

  

远程服务器返回错误：（403）Forbidden。

我的代码是：

HttpWebRequest webRequest = (HttpWebRequest)HttpWebRequest.Create(url);
webRequest.Method = "GET";
webRequest.Proxy = WebRequest.DefaultWebProxy;
webRequest.Credentials = new NetworkCredential("mp0010484", "mp00com", "domain");
webRequest.Proxy.Credentials = new NetworkCredential("mp0010484", "mp00com", "domain");

webRequest.Proxy = WebRequest.DefaultWebProxy;

using (HttpWebResponse webResponse = (HttpWebResponse)webRequest.GetResponse())
{
    using (StreamReader streamReader = new StreamReader(webResponse.GetResponseStream()))
    {
        XDocument document = XDocument.Load(new StringReader(streamReader.ReadToEnd()));
        string xml = document.Root.ToString();
        MessageBox.Show(xml);
    }
}