diff --git a/http-handler/Abstracts/MiddlewareManager.php b/http-handler/Abstracts/MiddlewareManager.php
index 33f65cdb..d5849a71 100644
--- a/http-handler/Abstracts/MiddlewareManager.php
+++ b/http-handler/Abstracts/MiddlewareManager.php
@@ -38,13 +38,13 @@ class MiddlewareManager extends BaseObject
 
         $source = &static::$_middlewares[$class][$method];
 		if (is_string($middlewares) && !in_array($middlewares, $source)) {
-            $source[] = di($middlewares);
+            $source[$middlewares] = di($middlewares);
 		} else {
 			foreach ($middlewares as $middleware) {
-				if (in_array($middleware, $source)) {
+				if (isset($source[$middleware])) {
 					continue;
 				}
-                $source[] = di($middleware);
+                $source[$middleware] = di($middleware);
 			}
 		}
 		return true;
diff --git a/http-handler/CoreMiddleware.php b/http-handler/CoreMiddleware.php
index b0dd99dd..fdaa0a73 100644
--- a/http-handler/CoreMiddleware.php
+++ b/http-handler/CoreMiddleware.php
@@ -20,11 +20,11 @@ class CoreMiddleware extends Middleware
 	 */
 	public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
 	{
+		var_dump(get_called_class());
 		$response = response()->withAccessControlAllowOrigin('*')
 			->withAccessControlRequestMethod($request->getAccessControlRequestMethod())
 			->withAccessControlAllowHeaders($request->getAccessControlAllowHeaders());
 
-		var_dump($response);
 
 		return $handler->handle($request);
 	}