Follow up to Bug 1053898. If a host element has after/before pseudos and an attached shadow root, should it be displayed as : host before shadowroot direct-children after or (as done in Bug 1053898) host shadowroot before direct-children after

Here is a test page for this issue: https://juliandescottes.github.io/webcomponents-playground/pseudo-under-host-element/

Actually I think the only alternative that would make sense would be to display pseudo-elements around the shadowroot, rather than around the "direct children". When you consider what is rendered, those elements are really before and after the shadowDOM. So I would say, either we keep the current approach (consistent with Chrome's current implementation) <host-component> #shadow-root ::before <div child1> ... <div childN> ::after or we do: <host-component> ::before #shadow-root ::after <div child1> ... <div childN>

We are sticking to what Chrome is doing for now. Might reconsiderate if we receive feedback about this.