vue HTML5 History 模式 node服务器端的配置

1.  新建server-proxy.js文件（dev和pro公用的proxy转发文件）

var proxy = {
  local:"http://localhost:9999",//mock环境
}
var config = {
  dev: {
      historyApiFallback: true,
      stats: { colors: true },
      hot: true,
      inline: true,
      progress: true,
      disableHostCheck:true,
      //contentBase:"./app/index",
      proxy: {
          '/api/mock': {
            target: proxy.local, //pathRewrite: {'^/column' : '/column'},                
              secure: false,
              changeOrigin: true
          }
      }
  },
  portPro: '10086' 

}
module.exports = config;

2.  新建 server-after-package.js ,打包后在当前目录就可以启动history模式，并做了proxy的转发。

console.time('start server-after-package need time')
const http = require('http')
const fs = require('fs')
var proxyhttp = require('express-http-proxy')
var express = require('express')
var app = express()
var proxy = require('./server-proxy')
app.set('roots', __dirname+'/dist')
app.use('/', express.static(app.get('roots')))
app.engine('html', require('ejs').renderFile)
for (var i in proxy.dev.proxy) {
    if (proxy.dev.proxy.hasOwnProperty(i)) {
        console.log(i, proxy.dev.proxy[i].target)
        app.use(i + '/*', proxyhttp(proxy.dev.proxy[i].target, {
            proxyReqPathResolver: function (req, res) {
                console.log(req.originalUrl)
                return req.originalUrl
            }
        }))
    }
}
app.use('*', function (req, res, next) {
  fs.readFile(app.get('roots')+'/index.html', 'utf-8', (err, content) => {
    if (err) {
      console.log('We cannot open "index.htm" file.')
    }
    res.writeHead(200, {
      'Content-Type': 'text/html; charset=utf-8'
    })
    res.end(content)
  })
});
var server = app.listen(proxy.portPro, function () {
    var host = server.address().address
    var port = server.address().port
    console.log('app listening at ' + require("os").hostname() + ' http://localhost:' + port)
    console.timeEnd('start server-after-package need time')
})

 问题：

报错：“Uncaught SyntaxError: Unexpected token <” 时，首先查看路径设置是否正确（主要时script指向的src是否正确，是否能访问）