Re: [w3c/webcomponents] Add <a> to safelist of elements that can call attachShadowRoot (#511)

Given we don't want to support `is=` in custom elements, this would imply that authors have to manually attach shadow root on each anchor element.  I'm not sure if that's useful enough to add the support.  I think it would remain what features of `a` should continue to function.  e.g. should the activation behavior continue to work even when a shadow tree is attached?

Thinking of this problem further, we seem to have overlooked the mechanism by which to delegate or intercept the activation happening at the shadow host.  Like focus, you may need to be able to intercept any activation on the host and overtake it.  Similarly, there might be cases in which activating an element inside a shadow tree should activate the host instead.

---
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/w3c/webcomponents/issues/511#issuecomment-223886097