Modules\Core\Module::registerMiddleware PHP Method

    public function registerMiddleware()
    {
        $this->container->dispatcher->addListener('app.beforeRun', function ($event) {
            $event->getApp()->add('Modules\\Core\\Source\\Libs\\Middleware\\CoreFirstLastMiddleware:core');
        }, -1000);
        $this->app->add(function ($request, $response, $next) {
            $response = $response->withAddedHeader('X-Powered-CMS', 'SlimCMS');
            $response = $response->withAddedHeader('X-XSS-Protection', '1; mode=block');
            $response = $response->withAddedHeader('X-Frame-Options', 'SAMEORIGIN');
            $response = $response->withAddedHeader('X-Content-Type-Options', 'nosniff');
            $response = $response->withAddedHeader('X-Permitted-Cross-Domain-Policies', 'master-only');
            return $next($request, $response);
        });
    }