const url = "https://medium.com/slack-developer-blog/everything-you-ever-wanted-to-know-about-unfurling-but-were-afraid-to-ask-or-how-to-make-your-e64b4bb9254";
const res = await fetch(url);
const handler = new Handler((err, result) => console.log(result), { url });
const parser = new Parser(handler, { decodeEntities: true });
parser.write(await res.text());
parser.done();