server是webpack创建的，运行在localhost:8080，部署到服务器后运行就报错

webpack.config.js如下

var path = require('path'); var merge = require('webpack-merge'); var webpack = require('webpack'); var TARGET = process.env.TARGET || 'dev'; var ROOT_PATH = path.resolve(__dirname); var HtmlWebpackPlugin = require('html-webpack-plugin'); var common = { entry: [path.resolve(ROOT_PATH, 'app/index')], resolve: { extensions: ['', '.js', '.jsx'] }, output: { path: path.resolve(ROOT_PATH, 'build/js'), filename: '/bundle.js' }, plugins: [ new HtmlWebpackPlugin({ title: '测试', }) ], module: { loaders: [ { test: /\.jsx?$/, loaders: ['babel'], include: path.resolve(ROOT_PATH, 'app') }, { test: /\.css$/, loaders: ['style', 'css'] } ] } }; switch (TARGET) { case 'build': module.exports = merge(common, { plugins: [ new webpack.optimize.UglifyJsPlugin({ compress: { warnings: false } }), new webpack.DefinePlugin({ 'process.env': { 'NODE_ENV': JSON.stringify('production') } }) ] }); break; case 'dev': module.exports = merge(common, { entry: [ 'webpack-dev-server/client?http://localhost:8080', 'webpack/hot/dev-server' ] }); break; }