Scrape GWT website using .Net

Hello Team,

                  On scraping a website developed using Google Web Toolkit technology, I get an error called, "Remote Service Exception". Any Idea about this error. Code with which I am trying....

HttpWebRequest request   = (HttpWebRequest)HttpWebRequest.Create("https://xxx);  request.Method            = "POST";  request.UserAgent         = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.115 Safari/537.36";  request.Headers["Cookie"] = SessionID;  request.Referer           = "xxx";  request.Accept            = "*/*";    request.Headers["X-GWT-Permutation"] = "E81756AE355F23274CB68B43D62F0248";  request.Headers["X-GWT-Module-Base"] = "https://xxx";    byte[] buffer             = System.Text.Encoding.ASCII.GetBytes(encodeData("7|0|6|https://xxx"));  //);  Stream PostData           = request.GetRequestStream();    PostData.Write(buffer, 0, buffer.Length);  PostData.Close();    HttpWebResponse response = (HttpWebResponse)request.GetResponse();  Stream stream            = response.GetResponseStream();

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