Strip UTF-8 byte order mark (BOM) from a string
From Wikipedia:
The Unicode Standard permits the BOM in UTF-8, but does not require nor recommend its use. Byte order has no meaning in UTF-8.
$ npm install --save strip-bom
const stripBom = require('strip-bom'); stripBom('\uFEFFunicorn'); //=> 'unicorn'
MIT © Sindre Sorhus