refact

src/isnd/Extensions/Extensions.cs

@@ -0,0 +1,17 @@
+using System;
+using Microsoft.AspNetCore.Mvc;
+
+namespace isn.Data
+{
+    public static class Extensions
+    {
+
+        public static IActionResult LoadingPage(this Controller controller, string viewName, string redirectUri)
+        {
+            controller.HttpContext.Response.StatusCode = 200;
+            controller.HttpContext.Response.Headers["Location"] = "";
+            
+            return controller.View(viewName, new RedirectViewModel { RedirectUrl = redirectUri });
+        }
+    }
+}