diff --git a/migrations/2023_09_28_create_oauth_access_tokens_table.php b/migrations/2023_09_28_create_oauth_access_tokens_table.php
index c5f00ba..72f92e8 100644
--- a/migrations/2023_09_28_create_oauth_access_tokens_table.php
+++ b/migrations/2023_09_28_create_oauth_access_tokens_table.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Schema\Builder;
 
diff --git a/migrations/2023_09_28_create_oauth_authorization_codes_table.php b/migrations/2023_09_28_create_oauth_authorization_codes_table.php
index cd7c3b3..fa2ef96 100644
--- a/migrations/2023_09_28_create_oauth_authorization_codes_table.php
+++ b/migrations/2023_09_28_create_oauth_authorization_codes_table.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Schema\Builder;
 
diff --git a/migrations/2023_09_28_create_oauth_clients_table.php b/migrations/2023_09_28_create_oauth_clients_table.php
index 3ea101c..d429b71 100644
--- a/migrations/2023_09_28_create_oauth_clients_table.php
+++ b/migrations/2023_09_28_create_oauth_clients_table.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Schema\Builder;
 
diff --git a/migrations/2023_09_28_create_oauth_jwt_table.php b/migrations/2023_09_28_create_oauth_jwt_table.php
index 77451f1..2797cf8 100644
--- a/migrations/2023_09_28_create_oauth_jwt_table.php
+++ b/migrations/2023_09_28_create_oauth_jwt_table.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Schema\Builder;
 
diff --git a/migrations/2023_09_28_create_oauth_refresh_tokens_table.php b/migrations/2023_09_28_create_oauth_refresh_tokens_table.php
index 649cd3f..f52fdce 100644
--- a/migrations/2023_09_28_create_oauth_refresh_tokens_table.php
+++ b/migrations/2023_09_28_create_oauth_refresh_tokens_table.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Schema\Builder;
 
diff --git a/migrations/2023_09_28_create_oauth_scopes_table.php b/migrations/2023_09_28_create_oauth_scopes_table.php
index aabda7a..c635e62 100644
--- a/migrations/2023_09_28_create_oauth_scopes_table.php
+++ b/migrations/2023_09_28_create_oauth_scopes_table.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Schema\Builder;
 
diff --git a/src/Controllers/AuthorizeController.php b/src/Controllers/AuthorizeController.php
index 56f3eeb..e210b87 100644
--- a/src/Controllers/AuthorizeController.php
+++ b/src/Controllers/AuthorizeController.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 namespace FoskyM\OAuthCenter\Controllers;
 use Flarum\User\User;
 use Flarum\Http\RequestUtil;
diff --git a/src/Middlewares/ResourceScopeMiddleware.php b/src/Middlewares/ResourceScopeMiddleware.php
index d42de10..288acbd 100644
--- a/src/Middlewares/ResourceScopeMiddleware.php
+++ b/src/Middlewares/ResourceScopeMiddleware.php
@@ -6,6 +6,7 @@ use Flarum\Foundation\ErrorHandling\ExceptionHandler\IlluminateValidationExcepti
 use Flarum\Foundation\ErrorHandling\JsonApiFormatter;
 use FoskyM\OAuthCenter\OAuth;
 use FoskyM\OAuthCenter\Storage;
+use Illuminate\Support\Arr;
 use Illuminate\Validation\ValidationException;
 use Psr\Http\Message\ResponseInterface as Response;
 use Psr\Http\Message\ServerRequestInterface as Request;
diff --git a/src/Models/AccessToken.php b/src/Models/AccessToken.php
index ad6f439..502d559 100644
--- a/src/Models/AccessToken.php
+++ b/src/Models/AccessToken.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 namespace FoskyM\OAuthCenter\Models;
 
 use Flarum\Database\AbstractModel;
diff --git a/src/Models/AuthorizationCode.php b/src/Models/AuthorizationCode.php
index 18940db..8b34f73 100644
--- a/src/Models/AuthorizationCode.php
+++ b/src/Models/AuthorizationCode.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 namespace FoskyM\OAuthCenter\Models;
 
 use Flarum\Database\AbstractModel;
diff --git a/src/Models/Client.php b/src/Models/Client.php
index ffe375d..840b713 100644
--- a/src/Models/Client.php
+++ b/src/Models/Client.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 namespace FoskyM\OAuthCenter\Models;
 
 use Flarum\Database\AbstractModel;
diff --git a/src/Models/Jwt.php b/src/Models/Jwt.php
index bf19989..d9ee703 100644
--- a/src/Models/Jwt.php
+++ b/src/Models/Jwt.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 namespace FoskyM\OAuthCenter\Models;
 
 use Flarum\Database\AbstractModel;
diff --git a/src/Models/RefreshToken.php b/src/Models/RefreshToken.php
index e742c0c..7f6bea0 100644
--- a/src/Models/RefreshToken.php
+++ b/src/Models/RefreshToken.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 namespace FoskyM\OAuthCenter\Models;
 
 use Flarum\Database\AbstractModel;
diff --git a/src/Models/Scope.php b/src/Models/Scope.php
index ae67779..125bf94 100644
--- a/src/Models/Scope.php
+++ b/src/Models/Scope.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 namespace FoskyM\OAuthCenter\Models;
 
 use Flarum\Database\AbstractModel;
diff --git a/src/OAuth.php b/src/OAuth.php
index 1ed9ce3..653a637 100644
--- a/src/OAuth.php
+++ b/src/OAuth.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 namespace FoskyM\OAuthCenter;
 
 use OAuth2\Server;
@@ -25,6 +33,7 @@ class OAuth
         $storage = new Storage;
         $server = new Server($storage, array(
             'allow_implicit' => true,
+            'enforce_state' => false
         ));
         $server->addGrantType(new AuthorizationCode($storage));
         $server->addGrantType(new ClientCredentials($storage));
diff --git a/src/Storage.php b/src/Storage.php
index 8399b6d..e99fea1 100644
--- a/src/Storage.php
+++ b/src/Storage.php
@@ -1,5 +1,13 @@
 <?php
 
+/*
+ * This file is part of foskym/flarum-oauth-center.
+ *
+ * Copyright (c) 2023 FoskyM.
+ *
+ * For the full copyright and license information, please view the LICENSE.md
+ * file that was distributed with this source code.
+ */
 namespace FoskyM\OAuthCenter;
 use Flarum\Extend\Model;
 use Flarum\User\User;