Service worker on server side app (empty manifest)?

[janat08]

I don't know if the service worker stops working when in dev mode, but I see nothing in cache in dev tools. I tried to log manifest, but it doesn't show up, not even an empty array. I followed the basic configuration guide, and the service worker gets registered.

`

"bundleFront": "parcel build ./src/jsLibsClient.js  ./src/components/paymentScript.ts ./src/components/subscribeScript.ts ./src/serviceWorker.js --dist-dir ./assets/static"

import {manifest, version} from '@parcel/service-worker';

async function install() {
  const cache = await caches.open(version);
  await cache.addAll(manifest);
}
addEventListener('install', e => e.waitUntil(install()));

async function activate() {
  const keys = await caches.keys();
  await Promise.all(
    keys.map(key => key !== version && caches.delete(key))
  );
}
addEventListener('activate', e => e.waitUntil(activate()));

`