On Thu, Jan 15, 2015 at 5:11 AM, Yehuda Katz <wyc...@gmail.com> wrote: > Can you say more about why same-identity upgrading is critical to the design > (as opposed to dom-mutation upgrading)? I asked up-thread but didn't get any > takers.
I tried to summarize the various upgrade scenarios here (as well as the other issues): https://wiki.whatwg.org/wiki/CustomElements None of them seem particularly attractive :-( > More generally, once people start writing libraries of HTMLElement > subclasses, our ability to add new callback names for all elements is going > to become pretty dicey, and we'll probably be forced into symbols anyway. We > may as well avoid a future inconsistency and just namespace DOM-supplied > callbacks separately from user-supplied properties and methods. Agreed that now that we have symbols we should start using them to avoid collisions. -- https://annevankesteren.nl/