Progressive Web App - Service Worker not serving start_URL

Question

Was playing around with the progressive web app. I've trying to make web app install banner working but I keep receiving service worker does not successfully serve the manifest's start_url after I debugging using Lighthouse (Picture below). Currently I'm hosting my website using azure.

NEW: I checked all my cache, start_url, and also my service worker to see everything match. But it still gives me the same error.

I'm not sure if it's my start_url or my service-workerproblem. Below is my code.

manifest.json

  {
   "short_name": "MY EXPERTS",
   "name": "MYEXPERT",
   "icons": [
    {
      "src": "Images/petronas_logo_192.png",
      "type": "image/png",
      "sizes": "192x192"
    },
    {
      "src": "Images/petronas_logo_192.png",
      "type": "image/png",
      "sizes": "512x512"
    }
 ],

 "background_color": "#FFFFFF",
 "theme_color": "#67BCFF",
 "display": "standalone",
 "start_url": "/Home/Index"
}

AddServiceWorker.js

if ('serviceWorker' in navigator) {
navigator.serviceWorker.register('/service-worker.js').
    then(function (registration) {
        // Registration was successful``
        console.log('ServiceWorker registration successful with scope: ', 
registration.scope);
    }).catch(function (err) {
        // registration failed :(
        console.log('ServiceWorker registration failed: ', err);
    });
}

service-worker.js

 self.addEventListener('install', e => {
 e.waitUntil(
    caches.open('airhorner').then(cache => {
        return cache.addAll([
            '/',
            '/?utm_source=homescreen',
            '/Home/About',
            '/Home/Index',
            '/Home/Contact'
        ])
            .then(() => self.skipWaiting());
    })
  )
});

self.addEventListener('activate', event => {
 event.waitUntil(self.clients.claim());
});

self.addEventListener('fetch', event => {
  event.respondWith(
    caches.match(event.request).then(response => {
        return response || fetch(event.request);
    })
  );
});

My Browser Cache :

Answer 1

Noted from Register A service worker,

If we register the service worker file at /example/sw.js, then the service worker would only see fetch events for pages whose URL starts with /example/ (i.e. /example/page1/, /example/page2/).

Inline with the shown error and given in this documentation, check the following:

1. Define a start_url property in your manifest.json file.
2. Ensure that your service worker properly caches a resource that matches the value of start_url.

Also, check this tutorial and see if it will help you.