Javascript ReactJS+；Webpack正在刷新页面，而不是热加载

我的react redux项目使用webpack，在浏览器中不是热重新加载。我必须手动刷新页面。不确定问题出在哪里

我的项目url是：

网页包日志如下所示

ℹ ｢wds｣: Project is running at http://localhost:8080/
ℹ ｢wds｣: webpack output is served from /
ℹ ｢wds｣: Content not from webpack is served from /app/build, /app/public

webpack.common.js

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

module.exports = {
    entry: {
        bundle: ['babel-polyfill', './src/index.js'],
    },
    plugins: [
        new HtmlWebpackPlugin({ template: './index.html', minify: true }),
    ],
    output: {
        filename: '[name].[hash].js',
        path: path.resolve(__dirname, 'build'),
        publicPath: '/',
    },
    resolve: {
        modules: [path.resolve(__dirname, 'src'), 'node_modules'],
    },
};

My webpack.config.js

const path = require('path');
const webpack = require('webpack');
const merge = require('webpack-merge');
const common = require('./webpack.common.js');

module.exports = (env) => merge(common, {
    mode: 'development',
    devtool: 'eval-source-map',
    devServer: {
        contentBase: [path.join(__dirname, 'build'), path.join(__dirname, 'public')],
        hot: true,
        disableHostCheck: true,
        proxy: {
            '/superAdmin': {
                target: 'http://localhost:3001',
                secure: false,
            },
        },
    },
    module: {
        rules: [
            {
                test: /\.(scss|css)$/,
                use: [
                    'style-loader',
                    'css-loader',
                    'resolve-url-loader',
                    { loader: 'sass-loader', options: { sourceMap: true } },
                ],
            },
            {
                test: /\.(jpe?g|png|gif|woff|woff2|eot|ttf|svg)$/i,
                use: [
                    'file-loader',
                ],
            },
            {
                test: /\.js$/,
                loader: 'babel-loader',
                exclude: /node_modules/,
            },
        ],
    },
    plugins: [
        new webpack.HotModuleReplacementPlugin(),
        new webpack.DefinePlugin({
            ENVIRONMENT: JSON.stringify(env)
        })
    ]
});

我检查了我的浏览器，它显示以下错误：

注意：堆栈溢出中另一个类似问题的答案并没有为我提供解决方案。