jupyterlab/examples/notebook/webpack.config.js

const webpack = require('webpack');

module.exports = {
  entry: ['whatwg-fetch', './build/index.js'],
  output: {
    path: __dirname + '/build',
    filename: 'bundle.js'
  },
  bail: true,
  devtool: 'cheap-source-map',
  mode: 'development',
  module: {
    rules: [
      { test: /\.css$/, use: ['style-loader', 'css-loader'] },
      { test: /\.html$/, use: 'file-loader' },
      { test: /\.md$/, use: 'raw-loader' },
      { test: /\.js.map$/, use: 'file-loader' },
      {
        // In .css files, svg is loaded as a data URI.
        test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
        issuer: /\.css$/,
        use: {
          loader: 'svg-url-loader',
          options: { encoding: 'none', limit: 10000 }
        }
      },
      {
        // In .ts and .tsx files (both of which compile to .js), svg files
        // must be loaded as a raw string instead of data URIs.
        test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
        issuer: /\.js$/,
        use: {
          loader: 'raw-loader'
        }
      },
      {
        test: /\.(png|jpg|gif|ttf|woff|woff2|eot)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
        use: [{ loader: 'url-loader', options: { limit: 10000 } }]
      }
    ]
  },
  plugins: [
    new webpack.DefinePlugin({
      // Needed for Blueprint. See https://github.com/palantir/blueprint/issues/4393
      'process.env': '{}',
      // Needed for various packages using cwd(), like the path polyfill
      process: { cwd: () => '/' }
    })
  ]
};