up up and away

zuss/sw.js

@@ -1,5 +1,4 @@
-// Simple offline cache for kiosk usage
-const CACHE = "wfw-aushang-2025.12.24.2";
+const CACHE = "wfw-aushang-2025.12.24.6";
 
 const ASSETS = [
   "/zuss/",
@@ -12,48 +11,51 @@ const ASSETS = [
 ];
 
 self.addEventListener("install", (event) => {
-  event.waitUntil(
-    caches.open(CACHE).then((c) => c.addAll(ASSETS)).then(() => self.skipWaiting())
-  );
+  event.waitUntil((async () => {
+    const cache = await caches.open(CACHE);
+    await cache.addAll(ASSETS);
+    self.skipWaiting();
+  })());
 });
 
 self.addEventListener("activate", (event) => {
-  event.waitUntil(
-    (async () => {
-      const keys = await caches.keys();
-      await Promise.all(keys.map(k => (k === CACHE ? null : caches.delete(k))));
-      await self.clients.claim();
-    })()
-  );
+  event.waitUntil((async () => {
+    const keys = await caches.keys();
+    await Promise.all(keys.map(k => (k === CACHE ? null : caches.delete(k))));
+    self.clients.claim();
+  })());
 });
 
-// Network-first for version.json + list, cache-first for static assets
 self.addEventListener("fetch", (event) => {
-  const url = new URL(event.request.url);
+  const req = event.request;
+  const url = new URL(req.url);
 
-  // Only handle same-origin requests
-  if (url.origin !== self.location.origin) return;
-
-  const isVersion = url.pathname.endsWith("/zuss/version.json");
-
-  if (isVersion) {
-    event.respondWith(
-      fetch(event.request, { cache: "no-store" }).catch(() => caches.match(event.request))
-    );
+  // Network-first for version.json (so updates are found)
+  if (url.pathname.endsWith("/zuss/version.json")) {
+    event.respondWith((async () => {
+      try {
+        const fresh = await fetch(req, { cache: "no-store" });
+        const cache = await caches.open(CACHE);
+        cache.put(req, fresh.clone());
+        return fresh;
+      } catch {
+        const cached = await caches.match(req);
+        return cached || new Response('{"version":"2025.12.24.6"}', { headers: { "Content-Type": "application/json" } });
+      }
+    })());
     return;
   }
 
-  // Cache-first for our own static assets
+  // Cache-first for app shell
   if (url.pathname.startsWith("/zuss/")) {
-    event.respondWith(
-      caches.match(event.request).then((cached) => {
-        if (cached) return cached;
-        return fetch(event.request).then((resp) => {
-          const copy = resp.clone();
-          caches.open(CACHE).then((c) => c.put(event.request, copy));
-          return resp;
-        });
-      })
-    );
+    event.respondWith((async () => {
+      const cached = await caches.match(req);
+      if (cached) return cached;
+      const fresh = await fetch(req);
+      const cache = await caches.open(CACHE);
+      cache.put(req, fresh.clone());
+      return fresh;
+    })());
+    return;
   }
 });