dataPersistor = $dataPersistor; } public function execute() { /** @var \Magento\Backend\Model\View\Result\Page $resultPage */ $resultPage = $this->resultFactory->create(ResultFactory::TYPE_PAGE); $this->initBreadcrumbAndMenu($resultPage)->getConfig()->getTitle()->prepend(__('Manage Cookies')); $this->dataPersistor->clear(CookieInterface::DATA_PERSISTOR_KEY); return $resultPage; } }