Huh, one day I forked a part of RE:DOM called nodom[1], to use it in my library for rendering D3 charts in the background worker. I'd been extending nodom, and finally got working D3 in worker[2], sorry the pun. As I recall, nodom was pretty straightforwardly coded w/o magic and easy to extend, a nice library if you need to play with lightweight vdom.

[1] https://github.com/ptytb/nodom [2] https://github.com/ptytb/d3-worker