fix: recover stale service worker clients

2026-08-03 00:47:00 +05:30
parent 13aa75c366
commit eb325a8412
3 changed files with 46 additions and 2 deletions
@@ -0,0 +1,37 @@
+/* global location, navigator, sessionStorage, window */
+(function () {
+  if (!("serviceWorker" in navigator)) return;
+
+  var version = "docs-v3";
+  var workerUrl = "/sw.js?v=" + encodeURIComponent(version);
+  if (window.trustedTypes) {
+    try {
+      workerUrl = window.trustedTypes
+        .createPolicy("wrnexus-pwa-recovery", {
+          createScriptURL: function (value) {
+            return value;
+          },
+        })
+        .createScriptURL(workerUrl);
+    } catch {
+      // A previously-created policy can make creation fail; the same-origin
+      // string remains valid when Trusted Types enforcement is not active.
+    }
+  }
+
+  var reloading = false;
+  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" })
+    .then(function (registration) {
+      return registration.update();
+    })
+    .catch(function () {});
+})();