Add scope hoisting in the prod config

[agnivade]

https://medium.com/webpack/brief-introduction-to-scope-hoisting-in-webpack-8435084c171f

[LinusBorg]

I'm not sure if we can consider this plugin production-ready yet. Last time I checked this was still in the early stages, but admittedly that was some time ago.

[agnivade]

Scope hoisting came with webpack 3 which was released in June 19. The template uses 3.6 now. A lot of companies including mine have successfully used scope hoisting now. It was even featured in the Chrome Dev Summit video by @addyosmani.

[kuoruan]

@agnivade Enable this gives me a Error

Uncaught TypeError: Cannot read property 'call' of undefined
    at r (manifest.3fe6de900fd915a3ce9a.js:1)
    at Object.NHnr (app.3cf392e250a975da6f37.js:1)
    at r (manifest.3fe6de900fd915a3ce9a.js:1)
    at window.webpackJsonp (manifest.3fe6de900fd915a3ce9a.js:1)
    at app.3cf392e250a975da6f37.js:1

My webpack version is 3.8.1

[agnivade]

Well, I guess you should raise an issue in the webpack repo. I just sent this PR because I applied this and noticed good improvements. I am no way an expert in Webpack.

[kuoruan]

@agnivade OK, thank you. I find the same issue at webpack/webpack#959 (comment)