What does HackerNews think of declarative-shadow-dom?

This feature was initially proposed by the Chrome team and was first implemented in Chrome about two years ago. See https://github.com/mfreed7/declarative-shadow-dom and https://caniuse.com/declarative-shadow-dom

Take a look at Declarative Shadow DOM: https://github.com/mfreed7/declarative-shadow-dom This is basically the SSR spec for web components.

Work is underway on speccing out declarative shadow doms, which would remove the need for that JS: https://github.com/mfreed7/declarative-shadow-dom