1. Sharmistha Chatterjee's Avatar
    I am trying to connect to a proxy from Windows Mobile 10 Application and retrieve https data by doing a sslupgrade:

    data to be retrieved https://news.google.com.

    I get the following error:

    The token supplied to the function is invalid (Exception from HRESULT: 0x80090308)

    Source code given below:

    ---------------------------

    Windows.Networking.HostName serverHost = new Windows.Networking.HostName(PROXY_IP);

    request = "CONNECT news.google.com:443 HTTP/1.0\r\nUser-Agent: NativeHost\r\nHost: news.google.com:443\r\nContent-Length: 0\r\nProxy-Connection: Keep-Alive\r\nPragma: no-cache\r\n\r\n";

    string serverPort = PROXY_PORT.ToString();

    await socket.ConnectAsync(serverHost, serverPort, SocketProtectionLevel.PlainSocket);

    Stream streamOut = socket.OutputStream.AsStreamForWrite();
    StreamWriter writer = new StreamWriter(streamOut);
    await writer.WriteLineAsync(request.ToString());
    await writer.FlushAsync();
    HostName destHost = new HostName("news.google.com");

    try
    {

    await socket.UpgradeToSslAsync(SocketProtectionLevel.Ssl, destHost);

    }

    catch (Exception ex)
    {
    Debug.WriteLine("Socket upgrade failed" + ex.Message);

    }
    02-24-2017 07:19 AM

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