Enforce Tls 1.2

Author: balag0

Diff for: Global.asax.cs

@@ -1,5 +1,6 @@
 using ARMExplorer.App_Start;
 using System.Configuration;
+using System.Net;
 using System.Web.Http;
 
 namespace ARMExplorer
@@ -9,6 +10,7 @@ public class Global : System.Web.HttpApplication
 
         protected void Application_Start()
         {
+            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
             Microsoft.ApplicationInsights.Extensibility.TelemetryConfiguration
                 .Active.InstrumentationKey = ConfigurationManager.AppSettings["AppInsightKey"] ?? System.Environment.GetEnvironmentVariable("AppInsightKey") ?? string.Empty;