webpack.config.js

const webpack = require('webpack')

module.exports = {

  mode: 'none',

  target: 'web',

  resolve: {
    extensions: ['.js', '.json'],

    modules: ['node_modules', '.'],

    // Use our versions of Node modules.
    alias: {
      fs: 'browserfs/dist/shims/fs.js',
      buffer: 'browserfs/dist/shims/buffer.js',
      path: 'browserfs/dist/shims/path.js',
      processGlobal: 'browserfs/dist/shims/process.js',
      bufferGlobal: 'browserfs/dist/shims/bufferGlobal.js',
      bfsGlobal: require.resolve('browserfs')
    }
  },

  // REQUIRED to avoid issue "Uncaught TypeError: BrowserFS.BFSRequire is not a function"
  // See: https://github.com/jvilk/BrowserFS/issues/201
  module: {
    noParse: /browserfs\.js/
  },

  watch: false,

  output: { filename: 'spec.js' },

  plugins: [
    // Expose BrowserFS, process, and Buffer globals.
    // NOTE: If you intend to use BrowserFS in a script tag, you do not need
    // to expose a BrowserFS global.
    new webpack.ProvidePlugin({ BrowserFS: 'bfsGlobal', process: 'processGlobal', Buffer: 'bufferGlobal' })
  ],

  // DISABLE Webpack's built-in process and Buffer polyfills!
  node: {
    process: false,
    Buffer: false
  },

  stats: 'normal'

}