Re: [w3c/webcomponents] The is="" attribute is confusing? Maybe we should encourage only ES6 class-based extension. (#509)

@trusktr 

> Is there something we can achieve with is="" that we can't achieve with tricks like above besides avoiding duplicate HTML?

https://github.com/w3c/webcomponents/issues/509#issuecomment-266174073

I would say PE is not the hardest part to workaround that `is` gives,
parsing context is.

Do you have any nice solution for following? (other than in fact polyfilling `is` in current shape)
```html
<table>
 <my-tr>
```
```html
<my-template>
   <div>This should be unavailable for `querySelector`, CSS and rendering
```
```html
<form>
   <my-input>which value will get serialized
```



-- 
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/509#issuecomment-266320220