protected function setCommonMeta(array $aMeta = [])
    {
        $oMeta = Factory::service('Meta');
        $oMeta
            ->addRaw([
                'charset' => 'utf-8',
            ])
            ->addRaw([
                'name'    => 'viewport',
                'content' => 'width=device-width, initial-scale=1',
            ]);

        foreach ($aMeta as $aItem) {
            $oMeta->addRaw($aItem);
        }
    }