Re: [w3c/webcomponents] appreciate your feedback for custom element diagram (#784)

hey really cool update :) I think it has all the core information now :)

small nitpick can we change 
```
Webkit rejects extended built-in elements.
```

to something like this
```
Webkit rejects extended built-in elements, therefore, elements using this will not work on IPhone or Safari
```
(We should make it really apparent what that means to the end user)

-- 
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/784#issuecomment-465560016