diff --git a/src/Base/CoreMiddleware.php b/src/Base/CoreMiddleware.php
index 2a74380..e2a7d72 100644
--- a/src/Base/CoreMiddleware.php
+++ b/src/Base/CoreMiddleware.php
@@ -25,12 +25,11 @@ class CoreMiddleware implements MiddlewareInterface
      */
     public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
     {
-		var_dump($request->getHeaders());
         $response = response();
         $response->withHeaders([
-            'Access-Control-Allow-Headers' => $request->getHeaderLine('Access-Control-Allow-Headers'), 
-            'Access-Control-Request-Method' => $request->getHeaderLine('Access-Control-Request-Method'), 
-            'Access-Control-Allow-Origin' => $request->getHeaderLine('Access-Control-Allow-Origin')
+            'Access-Control-Allow-Headers' => $request->getHeaderLine('access-control-request-headers'),
+            'Access-Control-Request-Method' => $request->getHeaderLine('access-control-request-method'),
+            'Access-Control-Allow-Origin' => $request->getHeaderLine('origin')
         ]);
         return $handler->handle($request);
     }