DynamicCDNWebpackPlugin with custom resolver for React (CDN as jsDelivr)

webpack.config.js

const HtmlWebpackPlugin = require("html-webpack-plugin");
const DynamicCdnWebpackPlugin = require("dynamic-cdn-webpack-plugin");

module.exports = {
  mode: "production",
  plugins: [
    new HtmlWebpackPlugin(),
    new DynamicCdnWebpackPlugin({
      resolver: (packageName, packageVersion, options) => {
        let env = options.env || "development";
        if (packageName === "react") {
          return {
            name: packageName,
            var: "React",
            version: packageVersion,
            url: `https://cdn.jsdelivr.net/npm/${packageName}@${packageVersion}/umd/react.${env}.min.js`
          };
        } else {
          return null;
        }
      }
    })
  ]
};