<https://ilikekillnerds.com/2020/08/how-to-create-an-iframe-and-populate-it-with-dynamic-html-in-javascript/#breadcrumb>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://ilikekillnerds.com/2020/08/how-to-create-an-iframe-and-populate-it-with-dynamic-html-in-javascript/>