diff --git a/app/routes.php b/app/routes.php
index ffdcc49..3c46c40 100644
--- a/app/routes.php
+++ b/app/routes.php
@@ -5,6 +5,8 @@ require "gateway/file_gateway.php";
 require "database_con.php";
 require "token.php";
 
+header("Access-Control-Allow-Methods: GET, POST, PUT, DELETE");
+
 use Psr\Http\Message\ResponseInterface as Response;
 use Psr\Http\Message\ServerRequestInterface as Request;
 use Slim\App;