2 var isUtf8 = require('is-utf8');
4 var stripBom = module.exports = function (arg) {
5 if (typeof arg === 'string') {
6 return arg.replace(/^\ufeff/g, '');
9 if (Buffer.isBuffer(arg) && isUtf8(arg) &&
10 arg[0] === 0xef && arg[1] === 0xbb && arg[2] === 0xbf) {
17 stripBom.stream = function () {
18 var firstChunk = require('first-chunk-stream');
20 return firstChunk({minSize: 3}, function (chunk, enc, cb) {
21 this.push(stripBom(chunk));