Trying to use explicit vendor chunks.

webpack.config.js

// foobar.js
import _ from 'lodash'
console.log(_.map([1, 2, 3], x => x + 1))

// webpack.config.js
// ...snip...
entry: {
  common: ['lodash'],
  'foobar': './foobar.js',
},

plugins: [
  new webpack.optimize.CommonsChunkPlugin({
    name: 'common',
    minSize: Infinity,
  }),
]
// ...snip...
  
// Output
Version: webpack 2.6.1
Time: 2369ms
        Asset     Size  Chunks                    Chunk Names
    foobar.js  2.29 MB       0  [emitted]  [big]  foobar
    common.js  2.29 MB       1  [emitted]  [big]  common