`node --experimental-default-type=module index.js` or `"type": "module"` and `node index.js` see repro repo: https://github.com/sequencerr/gfx-zopfli-repro
node --experimental-default-type=module index.jsor"type": "module"andnode index.jssee repro repo: https://github.com/sequencerr/gfx-zopfli-repro