<i>Go ahead and use a new technology. But don&#x27;t use a proven-bad technology.</i><p>But the &quot;proven bad&quot; technology you&#x27;re talking about here is just incorporating any third party content in your site. Obviously that is a security risk if the third party isn&#x27;t perfect about policing what they host.<p>On the other hand, billions of resources are served in that way every day, and the web is a much better place for it. Only a tiny fraction of those third party resources are hostile, and most of the ones that are will be closed down rapidly by the third party service themselves once discovered.<p>So is this really in &quot;proven bad&quot;, &quot;known-risky&quot; territory, or are we actually talking about &quot;very rare&quot; dangers and a lot of hyperbole here?