基于webpack-hot-middleware热加载相关错误的解决方法

GET http://127.0.0.1/__webpack_hmr 404 (Not Found)

// 准备webpack配置信息
let hotMiddlewareScript = 'webpack-hot-middleware/client?path=/__webpack_hmr&timeout=10000&reload=true',
 wpConfig = require('./webpack.config'),
 // 准备修改配置信息
 entries = Object.keys(wpConfig.entry)

// 添加热加载信息
entries.forEach((key) => {
 wpConfig.entry[key].push(hotMiddlewareScript);
})

// 添加插件信息
if(wpConfig.plugins === undefined) {
 wpConfig.plugins = []
}

// 添加热加载插件
wpConfig.plugins.push(
 new webpack.optimize.OccurrenceOrderPlugin(),
 new webpack.HotModuleReplacementPlugin(),
 new webpack.NoEmitOnErrorsPlugin())

main.bundle.js:30 GET http://127.0.0.1/static/44588e3474a86cea5670.hot-update.json 404 (Not Found)

module.exports = {
 // 其他配置信息略
 // ……
 output : {
 path: configs.dist,
 // 必须是绝对地址
 publicPath: 'http://127.0.0.1/static/',
 filename : '[name].bundle.js',
 libraryTarget : 'var' 
 }
}

XMLHttpRequest cannot load http://127.0.0.1/static/df222441abc9ddb6a616.hot-update.json. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access.

new webpack.optimize.OccurenceOrderPlugin(),
TypeError: webpack.optimize.OccurenceOrderPlugin is not a constructor
 at Object.<anonymous> (E:\Workspace\vue-hot\dev-server.js:23:6)
 at Module._compile (module.js:570:32)
 at Object.Module._extensions..js (module.js:579:10)
 at Module.load (module.js:487:32)
 at tryModuleLoad (module.js:446:12)
 at Function.Module._load (module.js:438:3)
 at Module.runMain (module.js:604:10)
 at run (bootstrap_node.js:394:7)
 at startup (bootstrap_node.js:149:9)
 at bootstrap_node.js:509:3