javascript - [WDS] Disconnected! 一直重复出现。

题主最近刚接触webpack，今天尝试下配置webpack的HMR，
一直在chrome的控制台重复出现[WDS] Disconnected!的警告，截图如下：

google了很多方法都找不到原因，所以才来请教下大家。
附上代码结构：

package.json

{
  "name": "vue-timer",
  "version": "1.0.0",
  "description": "a timer based on vue",
  "main": "main.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "webpack-dev-server --hot --inline"
  },
  "author": "Albert",
  "license": "ISC",
  "dependencies": {
    "vue": "^2.3.3"
  },
  "devDependencies": {
    "babel-core": "^6.24.1",
    "babel-loader": "^7.0.0",
    "babel-preset-env": "^1.4.0",
    "css-loader": "^0.28.1",
    "eslint": "^3.19.0",
    "eslint-config-airbnb-base": "^11.2.0",
    "eslint-plugin-import": "^2.2.0",
    "html-webpack-plugin": "^2.28.0",
    "style-loader": "^0.17.0",
    "stylus": "^0.54.5",
    "stylus-loader": "^3.0.1",
    "webpack": "^2.5.1",
    "webpack-dev-server": "^2.4.5"
  }
}

webpack.config.js

const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  devtool: 'eval-source-map',
  entry: path.resolve(__dirname, 'src/app/main.js'),
  output: {
    path: path.resolve(__dirname, 'src/public'),
    filename: 'bundle.js',
    publicPath: '/',
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        loader: 'babel-loader',
      },
      {
        test: /\.css$/,
        loader: 'style-loader!css-loader',
      },
      {
        test: /\.styl$/,
        loader: 'stylus-loader',
      },
    ],
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: path.resolve(__dirname, 'src/app/index.html'),
      hash: true,
    }),
    new webpack.HotModuleReplacementPlugin(),
    new webpack.NamedModulesPlugin(),
  ],
  resolve: {
    alias: {
      vue$: 'vue/dist/vue.common.js',
    },
  },
  devServer: {
    historyApiFallback: true,
    publicPath: '/',
  },
};

奇怪的是在IE11里我就没看到这种警告，chrome里就一直有，版本是58.0.3029.110