text: const webpack = require('webpack');
  const merge = require('webpack-merge');
  const common = require('./webpack.common.js');
  
  module.exports = merge(common.config, {
    devtool: 'source-map',
    plugins: [
      new webpack.DefinePlugin({
        'process.env': {
          'NODE_ENV': JSON.stringify('production')
        },
        BACKEND_URL: JSON.stringify('/'),
      })
    ]  
  });
  