Spec missing Headers.entries

[syrusakbary]

Headers.entries is implemented in some WinterCG runtimes (Deno Deploy & Cloudflare Workers) but is not in the spec.
Here's the example:

self.addEventListener('fetch', event => {
  let headers = event.request.headers;
  event.respondWith(new Response(`typeof headers.entries == "${typeof headers.entries}"`));
})

See related issue on WinterJS: wasmerio/winterjs#25 (comment)

Should entries be added to the spec so Cloudflare and Deno Deploy stay compliant with the spec and the rest of runtimes add support as well?

[jasnell]

headers.entries is actually defined as a side of effect of the Headers object being defined as an iterable (https://webidl.spec.whatwg.org/#idl-iterable) so this is technically covered by the spec already... runtimes that support headers.entries (workerd, deno, node.js, etc) already compliant.