On Wed, May 6, 2015 at 4:34 PM, Dimitri Glazkov <dglaz...@google.com> wrote: > This is https://www.w3.org/Bugs/Public/show_bug.cgi?id=24866. > > The way I remember it, the argument went like this: the most common use case > for this callback is to react to element becoming part of the main document > (the rough approximation of a nebulous concept "am I useful on the > screen?"), and making these callbacks be invoked in other cases may just be > noise for devs.
I see. We know from HTML that a change of parent element might be significant, e.g. with <picture> or the <details> element. I'm inclined to make a proposal here that we change these callbacks to be the primitives the DOM offers rather than these higher-level callbacks. -- https://annevankesteren.nl/