How to make webpack-dev-server watch for files we don't include as dependencies?

Question

webpack

Good afternoon!
Understanding Webpack. As far as I know, webpack-dev-server monitors and rebuilds the build if there have been changes in any of the files in the dependencies on the entry point (entry). I am using html-webpack-plugin and pug template engine i.e. I do not connect this file anywhere through require. But when changing in the pug file, although webpack-dev-server rebuilds the assembly (visible in the console), the changes that I made to pug are not displayed on the screen. You have to restart the browser manually. And this is very, very annoying!
I want to ask those who are in the subject how to solve this problem !!!
My webpack.config.js

let HtmlWebpackPlugin = require('html-webpack-plugin');
let HtmlWebpackPugPlugin = require('html-webpack-pug-plugin');
let webpack = require('webpack');
let ExtractTextPlugin = require('extract-text-webpack-plugin');
let path = require('path');

module.exports = {
    entry: './src/app.js',
    output: {
        path: path.resolve(__dirname,'dist'),
        filename: 'bundle.js'
    },
    module: {
      rules: [
          {
              test: /\.js$/,
              exclude: /node_modules/,
              loader: 'babel-loader'
          },
          {
            test: /\.css$/,
            use: ExtractTextPlugin.extract({
                fallback: 'style-loader',
                use: ['css-loader','postcss-loader']
            })
          },
          {
              test: /\.pug$/,
              loader: 'html-loader!pug-html-loader'
          }
      ]
    },
    devServer: {
        contentBase: path.join(__dirname, "dist"),
        compress: true,
        stats: 'normal',
        hot: true
    },
    plugins: [
        new HtmlWebpackPlugin({
            template: 'src/index.pug'
        }),
        new ExtractTextPlugin('css/style.css'),
        new HtmlWebpackPugPlugin()
    ]
};