My first thought was CDATA, but he could also mean using multiple namespaces or something else I suppose. https://developer.mozilla.org/en-US/docs/Web/API/CDAT

My first thought was CDATA, but he could also mean using multiple namespaces or something else I suppose. https://developer.mozilla.org/en-US/docs/Web/API/CDATASection https://developer.mozilla.org/en-US/docs/Web/API/CDATASectio...