Release Label Tools 0.1.0

public/sw.js

@@ -0,0 +1,48 @@
+const CACHE = "label-tools-v0.1.0";
+const APP = [
+  "./",
+  "./index.html",
+  "./manifest.webmanifest",
+  "./favicon.svg",
+  "./toolbox-app.json",
+];
+self.addEventListener("install", (event) => {
+  event.waitUntil(
+    caches
+      .open(CACHE)
+      .then((cache) => cache.addAll(APP))
+      .then(() => self.skipWaiting()),
+  );
+});
+self.addEventListener("activate", (event) => {
+  event.waitUntil(
+    caches
+      .keys()
+      .then((keys) =>
+        Promise.all(
+          keys.filter((key) => key !== CACHE).map((key) => caches.delete(key)),
+        ),
+      )
+      .then(() => self.clients.claim()),
+  );
+});
+self.addEventListener("fetch", (event) => {
+  if (
+    event.request.method !== "GET" ||
+    new URL(event.request.url).origin !== self.location.origin
+  )
+    return;
+  event.respondWith(
+    caches.match(event.request).then(
+      (hit) =>
+        hit ||
+        fetch(event.request).then((response) => {
+          if (response.ok)
+            caches
+              .open(CACHE)
+              .then((cache) => cache.put(event.request, response.clone()));
+          return response;
+        }),
+    ),
+  );
+});