title: How to configure webpack for nodejs with server side rendering
body: <p>I'm trying to setup Webpack to generate 2 bundles, one for server code with server side rendering and one for client code. So far the bundle seems to generate correctly but when I run the server code and it tries to render some of my React components it throws errors like this one: </p>
  
  <pre><code>ERROR in ./~/react-load-script/lib/index.js
  Module build failed: ReferenceError: Unknown plugin "add-module-exports" specified in "/Users/alex/Development/muub/one/website/node_modules/react-load-script/.babelrc" at 0, attempted to resolve relative to "/Users/alex/Development/muub/one/website/node_modules/react-load-script"
  at /Users/alex/Development/muub/one/website/node_modules/babel-core/lib/transformation/file/options/option-manager.js:180:17
  at Array.map (native)
  at Function.normalisePlugins (/Users/alex/Development/muub/one/website/node_modules/babel-core/lib/transformation/file/options/option-manager.js:158:20)
  at OptionManager.mergeOptions (/Users/alex/Development/muub/one/website/node_modules/babel-core/lib/transformation/file/options/option-manager.js:234:36)
  at OptionManager.init (/Users/alex/Development/muub/one/website/node_modules/babel-core/lib/transformation/file/options/option-manager.js:368:12)
  at File.initOptions (/Users/alex/Development/muub/one/website/node_modules/babel-core/lib/transformation/file/index.js:212:65)
  at new File (/Users/alex/Development/muub/one/website/node_modules/babel-core/lib/transformation/file/index.js:135:24)
  at Pipeline.transform (/Users/alex/Development/muub/one/website/node_modules/babel-core/lib/transformation/pipeline.js:46:16)
  at transpile (/Users/alex/Development/muub/one/website/node_modules/babel-loader/lib/index.js:46:20)
  at Object.module.exports (/Users/alex/Development/muub/one/website/node_modules/babel-loader/lib/index.js:163:20)
  @ ./App/Containers/Publish/Payment/Payment.jsx 18:0-39
  @ ./App/Containers/Publish/Payment/index.js
  @ ./App/Containers/Publish/Publish.jsx
  @ ./App/Containers/Publish/index.js
  @ ./App/Routes/index.js
  @ ./App/Containers/App.jsx
  @ ./App/index.js
  @ multi webpack-hot-middleware/client react-hot-loader/patch ./App
  </code></pre>
  
  <p>There are more errors similar to this one but related with other 3rd party npm packages.</p>
  
  <p>Here is my webpack server config:</p>
  
  <pre><code>const path = require('path');
  const webpack = require('webpack');
  const ExternalsPlugin = require('webpack2-externals-plugin');
  
  let conf = {
    devtool: 'source-map',
    context: path.resolve(__dirname),
  
    entry: [
      path.resolve(__dirname, 'index.js')
    ],
    target: 'node',
  
    output: {
      path: path.join(__dirname, 'build'),
      pathinfo: true,
      filename: 'server.js',
      publicPath: '/public/',
      libraryTarget: 'commonjs2'
   },
    resolve: {
      modules: ['App', 'node_modules'],
      extensions: ['.js', '.jsx']
   },
    module: {
     rules: [
     {
      test: /\.css$/,
      use: [
        {
          loader: 'css-loader/locals',
          options: {
            modules: true,
            sourceMap: true,
            importLoaders: 1,
            localIdentName: '[name]__[local]__[hash:base64:5]'
          }
        },
        'postcss-loader'
      ]
    },
    {
      test: /\.(js|jsx)?$/,
      loader: 'babel-loader',
      exclude: /node_modules/
    }
    ]
   },
   plugins: [
     new webpack.NoEmitOnErrorsPlugin(),
     new webpack.HotModuleReplacementPlugin(),
     new ExternalsPlugin({
       type: 'commonjs2',
       include: path.join(__dirname, 'node_modules'),
       exclude: [path.join(__dirname, 'node_modules', 'webpack/buildin'), path.join(__dirname, 'App')]
     }),
     new webpack.optimize.LimitChunkCountPlugin({maxChunks: 1}),
     new webpack.DefinePlugin({
       'process.env.NODE_ENV': JSON.stringify('development')
     })
    ]
  }
  
  module.exports = conf;
  </code></pre>
  
  <p>What could I be doing wrong?</p>