env: require('./dev.env'),
 port: 8080,
 autoOpenBrowser: true,
 assetsSubDirectory: 'static',//必須
 assetsPublicPath: '/',

http://localhost:8080/__webpack_hmr net::ERR_INCOMPLETE_CHUNKED_ENCODING

// webpack編譯輸出的發(fā)布路徑
// => 將 build 的路徑前綴修改為 ' ./ '（原本為 ' / '），是因?yàn)榇虬?npm run build)之后，
// 外部引入 js 和 css 文件時(shí)，如果路徑以 ' / ' 開(kāi)頭，在本地是無(wú)法找到對(duì)應(yīng)文件的（服務(wù)器上沒(méi)問(wèn)題）

module.exports = {
 build: {
 env: require('./prod.env'),
 index: path.resolve(__dirname, '../dist/index.html'),
 assetsRoot: path.resolve(__dirname, '../dist'),
 assetsSubDirectory: 'static',
 assetsPublicPath: './',
 productionSourceMap: true,
 // Gzip off by default as many popular static hosts such as
 // Surge or Netlify already gzip all static assets for you.
 // Before setting to `true`, make sure to:
 // npm install --save-dev compression-webpack-plugin
 productionGzip: false,
 productionGzipExtensions: ['js', 'css'],
 // Run the build command with an extra argument to
 // View the bundle analyzer report after build finishes:
 // `npm run build --report`
 // Set to `true` or `false` to always turn it on or off
 bundleAnalyzerReport: process.env.npm_config_report
 },
 dev: {
 env: require('./dev.env'),
 port: 8081,
 autoOpenBrowser: true,
 assetsSubDirectory: 'static',
 assetsPublicPath: '/',
 proxyTable: {},
 // CSS Sourcemaps off by default because relative paths are "buggy"
 // with this option, according to the CSS-Loader README
 // (https://github.com/webpack/css-loader#sourcemaps)
 // In our experience, they generally work as expected,
 // just be aware of this issue when enabling this option.
 cssSourceMap: true
 }