[BUG] ws/lib/sender.js:162: 'First argument must be a valid error code number'

[yw662]

miniflare occasionally throws like this, see cloudflare/workers-sdk#2476 or cloudflare/workers-sdk#1749,
or here #284 .

The problem comes here

miniflare/packages/web-sockets/src/couple.ts

Lines 57 to 63 in 80046ce

	pair.addEventListener("close", (e) => {
	if (e.code === 1005 /* No Status Received */) {
	ws.close();
	} else {
	ws.close(e.code, e.reason);
	}
	});

.

and for ws, it receives:

    if (code === undefined) {
      buf = EMPTY_BUFFER;
    } else if (typeof code !== 'number' || !isValidStatusCode(code)) {
      throw new TypeError('First argument must be a valid error code number');

function isValidStatusCode(code) {
  return (
    (code >= 1000 &&
      code <= 1014 &&
      code !== 1004 &&
      code !== 1005 &&
      code !== 1006) ||
    (code >= 3000 && code <= 4999)
  );
}

Maybe it just needs some tweaks to fit in.