Yeah, ::before and ::after should be added as the children of the shadow host in the composed tree, as a *pseudo* first child and a *pseudo* last child.
On Wed, Jul 1, 2015 at 1:15 PM Elliott Sprehn <espr...@chromium.org> wrote: > On Wed, Jul 1, 2015 at 12:08 AM, Hayato Ito <hay...@chromium.org> wrote: > >> > ::before and ::after are basically *siblings* of the shadow host, >> >> That's not a correct sentence. ::before and ::after shouldn't be a >> siblings of the shadow host. >> I just wanted to say that #2 is the desired behavior. >> >> > Indeed they're children, immediately before and immediately after the > composed children of an element. > > fwiw this is also how it must work to prevent breaking the web or > implementing special cases. <input> (and <textarea>) has a ShadowRoot and > input::before and input::after are both common ways to add decorations to > input elements. I broke this once in WebKit and we found all that content. > > - E >
