diff --git a/VAR.WebFormsCore/Code/Bundler.cs b/VAR.WebFormsCore/Code/Bundler.cs
index 180e2c7..3b8a253 100644
--- a/VAR.WebFormsCore/Code/Bundler.cs
+++ b/VAR.WebFormsCore/Code/Bundler.cs
@@ -70,34 +70,27 @@ namespace VAR.WebFormsCore.Code
 
         #region Public methods
 
-        public void WriteResponse(HttpResponse response, string contentType)
+        private static Encoding _utf8Econding = new UTF8Encoding();
+
+        public async void WriteResponse(HttpResponse response, string contentType)
         {
+            StringWriter textWriter = new StringWriter();
             response.ContentType = contentType;
             foreach (string fileName in AssemblyFiles)
             {
                 Stream resourceStream = _assembly.GetManifestResourceStream(fileName);
                 string fileContent = new StreamReader(resourceStream).ReadToEnd();
-                byte[] byteArray = Encoding.UTF8.GetBytes(fileContent);
-                if (byteArray.Length > 0)
-                {
-                    response.Body.Write(byteArray, 0, byteArray.Length);
-
-                    byteArray = Encoding.UTF8.GetBytes("\n\n");
-                    response.Body.Write(byteArray, 0, byteArray.Length);
-                }
+                textWriter.Write(fileContent);
+                textWriter.Write("\n\n");
             }
             foreach (string fileName in AbsoluteFiles)
             {
                 string fileContent = File.ReadAllText(fileName);
-                byte[] byteArray = Encoding.UTF8.GetBytes(fileContent);
-                if (byteArray.Length > 0)
-                {
-                    response.Body.Write(byteArray, 0, byteArray.Length);
-
-                    byteArray = Encoding.UTF8.GetBytes("\n\n");
-                    response.Body.Write(byteArray, 0, byteArray.Length);
-                }
+                textWriter.Write(fileContent);
+                textWriter.Write("\n\n");
             }
+            byte[] byteObject = _utf8Econding.GetBytes(textWriter.ToString());
+            await response.Body.WriteAsync(byteObject);
         }
 
         #endregion Public methods
diff --git a/VAR.WebFormsCore/Code/ExtensionMethods.cs b/VAR.WebFormsCore/Code/ExtensionMethods.cs
index 12238ad..e1327be 100644
--- a/VAR.WebFormsCore/Code/ExtensionMethods.cs
+++ b/VAR.WebFormsCore/Code/ExtensionMethods.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Text;
 using Microsoft.AspNetCore.Http;
 using VAR.Json;
 
@@ -30,11 +31,14 @@ namespace VAR.WebFormsCore.Code
             return string.Empty;
         }
 
+        private static Encoding _utf8Econding = new UTF8Encoding();
+
         public static void ResponseObject(this HttpContext context, object obj)
         {
             context.Response.ContentType = "text/json";
             string strObject = JsonWriter.WriteObject(obj);
-            context.Response.WriteAsync(strObject);
+            byte[] byteObject = _utf8Econding.GetBytes(strObject);
+            context.Response.Body.WriteAsync(byteObject);
         }
 
         public static void PrepareCacheableResponse(this HttpResponse response)
diff --git a/VAR.WebFormsCore/Code/GlobalRouterMiddleware.cs b/VAR.WebFormsCore/Code/GlobalRouterMiddleware.cs
index 484b935..10c91fa 100644
--- a/VAR.WebFormsCore/Code/GlobalRouterMiddleware.cs
+++ b/VAR.WebFormsCore/Code/GlobalRouterMiddleware.cs
@@ -22,7 +22,7 @@ namespace VAR.WebFormsCore.Code
             ServerHelpers.SetContentRoot(env.ContentRootPath);
         }
 
-        public Task Invoke(HttpContext httpContext)
+        public async Task Invoke(HttpContext httpContext)
         {
             httpContext.Response.Headers.Remove("Server");
             httpContext.Response.Headers.Remove("X-Powered-By");
@@ -36,16 +36,23 @@ namespace VAR.WebFormsCore.Code
             }
             catch (Exception ex)
             {
-                if (ex is ThreadAbortException)
+                if (IsIgnoreException(ex) == false)
                 {
-                    return null;
+                    GlobalErrorHandler.HandleError(httpContext, ex);
                 }
-                GlobalErrorHandler.HandleError(httpContext, ex);
             }
 
-            return null;
+            await httpContext.Response.Body.FlushAsync();
         }
 
+        private static bool IsIgnoreException(Exception ex)
+        {
+            if (ex is ThreadAbortException)
+            {
+                return true;
+            }
+            return false;
+        }
 
         private void RouteRequest(HttpContext context)
         {
diff --git a/VAR.WebFormsCore/Code/StaticFileHelper.cs b/VAR.WebFormsCore/Code/StaticFileHelper.cs
index ac6070a..73c6ce4 100644
--- a/VAR.WebFormsCore/Code/StaticFileHelper.cs
+++ b/VAR.WebFormsCore/Code/StaticFileHelper.cs
@@ -66,7 +66,7 @@ namespace VAR.WebFormsCore.Code
             {".7z", "application/x-7z-compressed"},
         };
 
-        public static void ResponseStaticFile(HttpContext context, string filePath)
+        public static async void ResponseStaticFile(HttpContext context, string filePath)
         {
             string extension = Path.GetExtension(filePath).ToLower();
             string contentType = null;
@@ -75,21 +75,14 @@ namespace VAR.WebFormsCore.Code
                 contentType = _mimeTypeByExtension[extension];
             }
 
-            //context.Response.Clear();
-
             if (string.IsNullOrEmpty(contentType) == false)
             {
                 context.Response.ContentType = contentType;
             }
             context.Response.PrepareCacheableResponse();
 
-            //context.Response.Buffer = true;
-            //context.Response.WriteFile(filePath);
-            //context.Response.Flush();
-            //context.Response.Close();
-            //context.Response.End();
             byte[] fileData = File.ReadAllBytes(filePath);
-            context.Response.Body.Write(fileData);
+            await context.Response.Body.WriteAsync(fileData);
         }
 
     }
diff --git a/VAR.WebFormsCore/Pages/Page.cs b/VAR.WebFormsCore/Pages/Page.cs
index 033fce2..87938cd 100644
--- a/VAR.WebFormsCore/Pages/Page.cs
+++ b/VAR.WebFormsCore/Pages/Page.cs
@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.IO;
+using System.Text;
 using Microsoft.AspNetCore.Http;
 using VAR.WebFormsCore.Code;
 using VAR.WebFormsCore.Controls;
@@ -12,7 +13,9 @@ namespace VAR.WebFormsCore.Pages
 
         public HttpContext Context { get; set; }
 
-        public void ProcessRequest(HttpContext context)
+        private static Encoding _utf8Econding = new UTF8Encoding();
+
+        public async void ProcessRequest(HttpContext context)
         {
             StringWriter stringWriter = new();
 
@@ -54,7 +57,8 @@ namespace VAR.WebFormsCore.Pages
             if (context.Response.HasStarted) { return; }
 
             context.Response.Headers.Add("Content-Type", "text/html");
-            Context.Response.WriteAsync(stringWriter.ToString());
+            byte[] byteObject = _utf8Econding.GetBytes(stringWriter.ToString());
+            await context.Response.Body.WriteAsync(byteObject);
         }
 
         private bool _isPostBack = false;