title: webpack-dev-server not serving bundle from config location with react-router param route
body: <p>Using react-router my routes match and my app bundle SearchUXBundle.js correctly loads from first level routes - but second level routes /tracker/:id incorrectly are trying to load my app bundle from localhost/tracker/dist/SearchUXBundle.js instead of localhost/dist/SearchUXBundle.js.  im assuming this is some kind of config wrinkle in webpack 'output' relating to relative paths that im missing... </p>
  
  <p>webpack.config,js</p>
  
  <pre><code>var path = require('path');
  var webpack = require('webpack');
  
  module.exports = {
    devtool: 'source-map',
    devServer: {
          inline:false,
          port: 8001,
          historyApiFallback: true 
    },
    entry: {
      app: ['./src/root.js']
    },
  
    output: {
            path: "/dist",
            publicPath: '/',
            filename: '/dist/SearchUXBundle.js'
      },
    module: {
      loaders: [
        {
          test: /\.js$/,
          exclude: /node_modules/,
          loader: 'babel',
          query: {
            retainLines: true,
            cacheDirectory: true
          }
        },
        {
          test: /.css$/,
          loaders: ['style', 'css']     
        },
        { test: /\.(png|jpg|jpeg|gif|woff)$/, loader: 'url-loader?limit=8192' },
      ]
    },
    resolve: {
        alias: {
            __CONFIG__: path.join(__dirname, 'config', process.env.REACT_ENV)
        }
    }
  };
  </code></pre>
  
  <p>app.js</p>
  
  <pre><code>...
  const store = createStore(rootReducer, enhancer);
  const history = syncHistoryWithStore(browserHistory, store, {
    selectLocationState: createSelectLocationState()
  });
  
  render(
    &lt;Provider store={store} &gt;
       &lt;Router history={history}&gt; 
          &lt;Route path="/" component={SearchUXContainer} /&gt;
          &lt;Route path="tracker/:id" component={EmailTrackerContainer}/&gt;
          &lt;Route path="thisWorks" component={SearchUXContainer}/&gt;
       &lt;/Router&gt;
    &lt;/Provider&gt;,
    document.getElementById('app')
  );
  </code></pre>