private function loadExtensionData(NodeInterface $node, ExtensionInterface $extension, $webspaceKey, $locale)
    {
        $extension->setLanguageCode($locale, $this->namespaceRegistry->getPrefix('extension_localized'), '');
        $data = $extension->load(
            $node,
            $webspaceKey,
            $locale
        );

        return $extension->getContentData($data);
    }