parse-headers

parse-headers.ts

const headers = `
Date: Sun, 17 Aug 2014 16:24:52 GMT
      Content-Type: text/html; charset=utf-8
      Transfer-Encoding: chunked
      Set-Cookie: Foo2
      set-Cookie: bar
      set-cookie: bong
`;
const s = headers.trim().split(/\s*\n\s*/g).map((v) => {
    const [header, value] = v.split(/:\s*/, 2);
    return [header.toLowerCase(), value]
})
console.log(s);
const a = new URLSearchParams(s)
console.log(a.getAll('set-cookie'));