production.js

production.js

...
const CompressionPlugin = require("compression-webpack-plugin");

environment.plugins.prepend(
    "Compression",
    new CompressionPlugin({
        filename: "[path].br[query]",
        algorithm: "brotliCompress",
        test: /\.(ts|tsx|js|jsx|css|scss|png|jpeg|jpg|svg|eot|woff|woff2|ttf|otf)$/,
        compressionOptions: { level: 11 },
        threshold: 10240,
        minRatio: 0.8,
        deleteOriginalAssets: false,
    })
);
...