fix: recover PWA clients without navigation reload

app/docs.test.ts

@@ -139,7 +139,8 @@ test("site includes core guides and production configuration", () => {
   expect(config).toContain("head: '<script src=\"/pwa-recover.js\" defer></script>'");
   const recovery = readFileSync(join(root, "public", "pwa-recover.js"), "utf8");
   expect(recovery).toContain('updateViaCache: "none"');
-  expect(recovery).toContain("registration.update()");
+  expect(recovery).toContain("requestIdleCallback");
+  expect(recovery).not.toContain("location.reload()");
   expect(config).toContain('pattern: "^https://wrnexusjs\\\\.dev/"');
 });
 

public/pwa-recover.js

@@ -1,4 +1,4 @@
-/* global location, navigator, sessionStorage, window */
+/* global navigator, window */
 (function () {
   if (!("serviceWorker" in navigator)) return;
 
@@ -19,19 +19,22 @@
     }
   }
 
-  var reloading = false;
+  var recover = function () {
-  navigator.serviceWorker.addEventListener("controllerchange", function () {
-    var key = "wrnexus-pwa-controller-" + version;
-    if (reloading || sessionStorage.getItem(key)) return;
-    reloading = true;
-    sessionStorage.setItem(key, "1");
-    location.reload();
-  });
-
     navigator.serviceWorker
-    .register(workerUrl, { updateViaCache: "none" })
+      .getRegistration()
       .then(function (registration) {
-      return registration.update();
+        if (
+          registration &&
+          registration.active &&
+          registration.active.scriptURL.includes(version)
+        ) {
+          return;
+        }
+        return navigator.serviceWorker.register(workerUrl, { updateViaCache: "none" });
       })
       .catch(function () {});
+  };
+
+  if ("requestIdleCallback" in window) window.requestIdleCallback(recover, { timeout: 2000 });
+  else window.setTimeout(recover, 0);
 })();