ntfy/web/src/index.jsx

import * as React from "react";
import { createRoot } from "react-dom/client";
// eslint-disable-next-line import/no-unresolved
import { registerSW } from "virtual:pwa-register";
import App from "./components/App";

// fetch new sw every hour, i.e. update app every hour while running
const intervalMS = 60 * 60 * 1000;

// https://vite-pwa-org.netlify.app/guide/periodic-sw-updates.html
registerSW({
  onRegisteredSW(swUrl, registration) {
    if (!registration) {
      return;
    }

    setInterval(async () => {
      if (registration.installing || navigator?.onLine === false) return;

      const resp = await fetch(swUrl, {
        cache: "no-store",
        headers: {
          cache: "no-store",
          "cache-control": "no-cache",
        },
      });

      if (resp?.status === 200) await registration.update();
    }, intervalMS);
  },
});

const root = createRoot(document.querySelector("#root"));
root.render(<App />);