Comment by lolinder
7 days ago
I'd be surprised if it uses moveBefore for something that seems to have put so much thought into being portable. moveBefore doesn't even have an entry in MDN yet, the only references I can find to it suggest it's still only available behind a flag in Chrome canary.
It could support it as a progressive enhancement.
I personally wouldn't even bother with that yet.
Once it's available in even one browser not behind a flag, sure, but while it's still entirely undocumented and only available to people who both use Chrome Canary and know to go turn on a specific flag?