Re: [webcomponents] Custom elements' upgrade order is ambiguous in the case of a detached node (#420)

> Now, I would really prefer upgrading custom elements in the order they were instantiated by the DOM API / HTML parser

I think that is the intent of the spec's "document custom element order" concept. However, it would be better if this were an explicit list tracked by the parser and createElement.

---
Reply to this email directly or view it on GitHub:
https://github.com/w3c/webcomponents/issues/420#issuecomment-193439472