<https://community.woltlab.com/thread/292556-blank-article-page-after-update/>
<http://schema.org/mainEntityOfPage>
<https://community.woltlab.com/thread/292556-blank-article-page-after-update/>
<https://community.woltlab.com/thread/292556-blank-article-page-after-update/?postID=1868824>