// webpack.config.jsconstHtmlWebpackPlugin=require('html-webpack-plugin')constPolyfillIoHtmlWebpackPlugin=require('@isoden/polyfill-io-html-webpack-plugin')module.exports=(env)=>{
...
plugins: [newHtmlWebpackPlugin(),newPolyfillIoHtmlWebpackPlugin({disabled: !env.production// it will only work in production build}),]}