Workaround for "Cannot clear a timeout created in a different request context" error in Cloudflare Workers

cloudflare-timeout.mjs

// Replacement for setTimeout/clearTimeout in Cloudflare Workers
// Avoids "Cannot clear a timeout created in a different request context" error
//
// Usage:
//     import { setTimeout, clearTimeout } from "./cloudflare-timeout.mjs"
//
// Author: Vanessa "Codefrau" Freudenberg <vanessa@codefrau.net>

export function setTimeout(func, ...opts) {
    const timeout = { cancelled: false };
    globalThis.setTimeout((...args) => timeout.cancelled || func(...args), ...opts);
    return timeout;
}

export function clearTimeout(timeout) {
    if (typeof timeout === "object") timeout.cancelled = true;
    else if ((typeof timeout === "undefined")) return;
    else throw Error("cloudflare-timeout: clearTimeout() expects object returned from setTimeout()");
}