https://provincia.vercelli.it/WebInterface/new-ui/sw.js

1async function getVersion() {
2  const response = await fetch("./version.js?v=" + new Date().getTime());
3  const text = await response.text();
4  const match = text.match(/version:\s*"([^"]+)"/);
5  const version = match ? match[1] : "unknown";
6  return version;
7}
8
9self.addEventListener("install", (event) => {
10  console.log("[SW] Service Worker installing");
11  event.waitUntil(
12    getVersion().then((version) => {
13      self.version = version;
14      console.log("****************************************************");
15      console.log(`WebInterface v${version}`);
16      console.log("****************************************************");
17    })
18  );
19});
20
21self.addEventListener("activate", (event) => {
22  console.log("[SW] Service Worker activated");
23});
24
25self.addEventListener("fetch", (e) => {
26  if (e.request.method !== "GET") return;
27
28  const url = new URL(e.request.url);
29
30  url.searchParams.set("v", self.version || "unknown");
31
32  e.respondWith(
33    fetch(url.toString(), {
34      headers: e.request.headers,
35      mode: e.request.mode === "navigate" ? "same-origin" : e.request.mode,
36      credentials: e.request.credentials,
37      redirect: e.request.redirect,
38    })
39      .then((response) => {
40        return response;
41      })
42      .catch((error) => {
43        console.error(`[SW] Fetch failed for: ${url.pathname}`, error);
44        throw error;
45      })
46  );
47});
48
49console.log("[SW] Service Worker script loaded");