Shadow DOM

Coming back to this – but… pretty hefty concept for a “key concept” or a language “feature” / so, it’s a good edge-case to talk about.

https://www.w3.org/TR/shadow-dom/

https://developer.mozilla.org/en-US/docs/Web/API/Web_components/Using_shadow_DOM

https://www.igalia.com/chats/shadow-origins