I'm trying to learn/code async Javascript (Chrome extension) and I'm getting two errors. Can someone please assist?

self.addEventListener('wheel', (e) => {
    e.waitUntil(async function () { // Error: Uncaught TypeError: e.waitUntil is not a function
        
        if (e.deltaX == 0 && e.deltaZ == 0) {
            if (e.deltaY > 0)  triggerKeydown(false);
            else if (e.deltaY < 0)  triggerKeydown(true);
        }
        await delay(1000);
        window.scrollTo(0, 0);
        
        return; 
    });
});

const delay = ms => new Promise(res => setTimeout(res, ms));

2nd Error (it didn't supply a line number):

The service worker navigation preload request was cancelled before 'preloadResponse' settled. If you intend to use 'preloadResponse', use waitUntil() or respondWith() to wait for the promise to settle.