jasperserver generating a blank PDF with Web Services (C# code)

 
	// Setup WebClient
         WebClient httpclient = new WebClient();
        //Basic Auth
        httpclient.Credentials = new NetworkCredential("jasperadmin", "jasperadmin");
        httpclient.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
 
        // Build resourceDescriptor
        string requestXml = System.IO.File.ReadAllText(Server.MapPath("XMLFile.xml"));
 
        // Send PUT
		string requestAllResult = "";
 
        requestAllResult = httpclient.UploadString("http://localhost:8080/jasperserver/rest/report/reports/IvanReports/TestReport2?RUN_OUTPUT_FORMAT=PDF", "PUT", requestXml);
 
        // Get session cookie
        string session = httpclient.ResponseHeaders.Get("Set-Cookie");
        // Set session cookie
        httpclient.Headers.Add("Cookie", session);
 
        // Extract uuid, filename is always report
        XmlDocument doc = new System.Xml.XmlDocument();
        doc.LoadXml(requestAllResult);
        XmlNode node = doc.DocumentElement.SelectSingleNode("uuid");
        string uuid = node.InnerText;
 
        //Build GET URL
        string reportUrl = "http://localhost:8080/jasperserver/rest/report/";
        reportUrl += uuid;
        reportUrl += "?file=report";
 
        // Get report
        string report = httpclient.DownloadString(reportUrl);
        // Send the report to the user
		// I AM ASSUMING THE BUG IS HERE... but I may be mistaken
        Response.ContentType = "application/pdf";
        Response.AddHeader("Content-Disposition", "attachment; filename=file.pdf");
        Response.ClearContent();
        byte[] bytes = System.Text.UTF8Encoding.UTF8.GetBytes(report);
        Response.OutputStream.Write(bytes, 0, bytes.Length);
        Response.Flush();
        Response.Close();