无法在Silverlight中关闭HttpClient连接

Question

我无法使用HttpWebResponse.Close（）关闭Silverlight中的HttpClient连接。在Wireshark中，我仍然可以看到从流中收到的所有数据包。如果我在WPF或控制台应用程序中使用完全相同的代码，则流将关闭。这是Silverlight HttpClient的错误吗？

控制台应用程序：

class Program
{
    static BinaryReader BinaryReader;

    static void Main(string[] args)
    {
        GetData();

        Console.WriteLine("Press any key to close the stream...");
        Console.ReadLine();
        BinaryReader.Close();
        Console.ReadLine();
        Console.WriteLine("Press any key to close the program..");
    }

    static async void GetData()
    {
        var httpClient = new HttpClient();
        var response = await httpClient.GetAsync("http://212.42.54.136:8008/mjpg/video.mjpg?camera=1", HttpCompletionOption.ResponseHeadersRead);
        response.EnsureSuccessStatusCode();
        BinaryReader = new BinaryReader(await response.Content.ReadAsStreamAsync());
    }
}