Webpack 4静态资产未使用HtmlWebpackPlugin重新加载

我正在使用npm和HtmlWebpackPlugin配置一个简单的webpack 4设置，以生成index.html，这一切都很好，只是它仅在运行我的产品构建时生成文件，并且对模板的更改不会自动反映在浏览器中

这是我的webpack.config.js文件

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

// Static data
const castingteamData = require('./castingteam.json');

module.exports = {
  entry: './src/app/app.js',
  output: {
    path: path.resolve(__dirname, './dist'),
    publicPath: '/dist/',
    filename: 'build.js'
  },
  module: {
    rules: [
  ..................................omitted loaders
    ]
  },
  plugins: [
    new HtmlWebpackPlugin({
      data: castingteamData,
      template: 'src/app/index.html'
    })
  ],

  devServer: {
    contentBase: './dist',
    historyApiFallback: true,
    noInfo: true,
    overlay: true
  },
  performance: {
    hints: false
  },
  devtool: '#eval-source-map'
};

if (process.env.NODE_ENV === 'production') {
  module.exports.devtool = '#source-map'
  // http://vue-loader.vuejs.org/en/workflow/production.html
  module.exports.plugins = (module.exports.plugins || []).concat([
    new CopyWebpackPlugin([
      {
        from: 'src/assets/img/',
        to: 'assets/img/',
        toType: 'dir'
      }
    ]),
    new CopyWebpackPlugin([
      {
        from: 'src/assets/fonts',
        to: 'assets/fonts',
        toType: 'dir'
      }
    ]),
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: '"production"'
      }
    }),
    new webpack.optimize.UglifyJsPlugin({
      sourceMap: true,
      compress: {
        warnings: false
      }
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true
    })
  ])
}

在package.json中，我有两个脚本：

"scripts": {
  "build": "cross-env NODE_ENV=production webpack --progress --hide- 
 modules",
  "dev": "cross-env NODE_ENV=development webpack-dev-server --open --hot"
}

---

正如我所说，index.html是在运行npm运行构建时正确生成的，但npm运行开发没有乐趣。看起来这应该是一个简单的修复，但我找不到它

网页包开发服务器似乎没有像js和css文件那样跟踪html文件。Javascript和css的更改会立即反映在浏览器中，但在html模板更改后，我需要刷新浏览器。是这样的还是可以更方便地设置？