Re: [w3c/webcomponents] createElement and createElementNS() should check is attribute (#466)

OK, here are all the edge cases I can think of:

- non-browsing context document `<a is="x-b">`
- `<svg:g is="x-b">`
- `<custom-el is="x-b">`
- `<p is="x-b">` with `x-b` not yet defined
- `<p is="notvalid">`

I will attempt to make all these cases just treat `is` as a normal attribute. I believe that is consistent with the older less-precise verisons of the spec.

The alternative would be turning the result into HTMLUnknownElement.

---
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/w3c/webcomponents/issues/466#issuecomment-205370877