RDFaification
Shelley Powers: One unfortunate consequence of switching DOCTYPEs is that when I do use embedded SVG, the page won’t validate. However, this won’t impact on the user agents and their ability to process the SVG correctly, so I’ll just have to live with the invalidation errors. That’s the joy of DOCTYPEs.
We either need a DOCTYPE that supports both RDFa and SVG and that a validator recognizes, or a validator that doesn’t rely on DOCTYPE that supports RDFa.