to avoid The site's security certificate is not trusted! errors

use this in Global aspx

  void Application_Start(object sender, EventArgs e)

        {

            // Code that runs on application startup

            System.Net.ServicePointManager.ServerCertificateValidationCallback =

                ((certSender, certificate, chain, sslPolicyErrors) => true);

        }

of course , this is where there is no security issue