Results 5 issues of N

Can we please add support for +ES6?

I have raised the issue [here](https://github.com/webpack-contrib/mini-css-extract-plugin/issues/280) as well thought it was the `mini-css-extract-plugin` issue but just when I commented the RTL plugin from my Webpack config the sourcemap started working...

Is there a way to support expanding at a particular index? Given the following values: ```jsonc // Array [ {"key0": {...} }, {"key1": {...} }, ] // Object { "key0":...

The following code gives a `null` value for `ref.current`: ```jsx const ref = useRef(); useEffect(() => { console.log(ref); }, [ref]); return ( ) ```