[docs] Demo site broken on IE 11

[petermikitsh]

Problem description

Array.find isn't polyfilled in the demo site, so it doesn't load in IE 11.

Steps to reproduce

Open v1 demo site in IE 11.

Images & references

Notes

Not 100% sure on this, but I'm fairly confident it used to load on IE 11 in the past.

[oliviertassinari]

Yes, it used to work. Oops, I must have broken it with the latest documentation update.

[oliviertassinari]

I have been fixing some issues. The last one might be next.js related.

[oliviertassinari]

I have been noticing issues with the following line:

const ansiRegex = __webpack_require__(420);

module.exports = input => typeof input === 'string' ? input.replace(ansiRegex(), '') : input;

This is related to vercel/next.js#2747. They have merged a fix. it I should soon be fixed for the dev env. For the production env, it's working fine now. We can close :).