deno: New WS api blocking after closing connection

import { delay } from "https://deno.land/std@0.65.0/async/delay.ts";

const ws = new WebSocket("wss://irc-ws.chat.twitch.tv:443");

ws.onopen = () => console.log("connection opened");

ws.onclose = () => console.log("conn closed");

await delay(5000);

ws.close();

Issue is when closing a WS connection something appears to be stuck in the event loop (just a guess), preventing the program from terminating. To replicate this issue, just create a ws connection and close it.