Re: [whatwg/dom] Make it possible to observe connected-ness of a node via MutationObserver (#533)

@wessberg I'm fine with a different issue. The only reason why we keep debating this here is because in the last F2F meeting we discussed this topic (from the agenda), and the point of contention was exactly what you mentioned, sync vs async.

As for the perf penalties, I will like to get more clarification from implementers. In theory, and by looking at the spec, the node reaction mechanism is in place for all elements, we only tap into them for custom elements today.  The old mutation events are not necessarily a good reference, and they semantics are confusing, but certainly something to keep in mind during this discussions. @rniwa do you want me to open another issue for the sync proposal?

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/whatwg/dom/issues/533#issuecomment-492708140