how up to date is this polyfill wrt. the current spec?

[Pomax]

I'm looking into implementing a demo of how radically web components can change the way we look at what "a webpage" means, and was wondering how up to date this polyfill was.

[dglazkov]

Use toolkitchen:https://github.com/toolkitchen. Their polyfills are much better.

[Pomax]

ah, very cool, thanks!