diff --git a/zuss/app.js b/zuss/app.js
index d17812b..e1ca348 100644
--- a/zuss/app.js
+++ b/zuss/app.js
@@ -4,7 +4,7 @@
  * - Install/Update Overlay mit beforeinstallprompt.prompt()
  */
 
-const APP_VERSION = "2025.12.24.10";
+const APP_VERSION = "2025.12.24.11";
 const TOKEN = "T9e7WESBXxy6rSD";
 const BASE = "https://home.x-s.at";
 const SHARE_DAV = `${BASE}/public.php/dav/files/${TOKEN}`;
@@ -331,8 +331,16 @@ async function registerSW() {
 }
 
 function closeAushang(){
-  const ret = encodeURIComponent(location.pathname + location.search);
-  window.location.href = `./close.html?return=${ret}`;
+  try { window.close(); } catch {}
+  // Fallbacks: first try history back, then blank
+  setTimeout(() => {
+    if (document.visibilityState === "hidden") return; // tab closed
+    history.back();
+    setTimeout(() => {
+      if (document.visibilityState === "hidden") return;
+      location.replace("about:blank");
+    }, 200);
+  }, 120);
 }
 
 function applyTheme(t){
diff --git a/zuss/index.html b/zuss/index.html
index 69a7d08..c52038b 100644
--- a/zuss/index.html
+++ b/zuss/index.html
@@ -169,6 +169,6 @@
     </div>
   </div>
 
-  <script src="./app.js?v=2025.12.24.10"></script>
+  <script src="./app.js?v=2025.12.24.11"></script>
 </body>
 </html>
diff --git a/zuss/sw.js b/zuss/sw.js
index 7a8eb75..4ceeb52 100644
--- a/zuss/sw.js
+++ b/zuss/sw.js
@@ -1,9 +1,8 @@
-const CACHE = "wfw-aushang-2025.12.24.10";
+const CACHE = "wfw-aushang-2025.12.24.11";
 
 const ASSETS = [
   "/zuss/",
   "/zuss/index.html",
-  "/zuss/close.html",
   "/zuss/app.js",
   "/zuss/manifest.webmanifest",
   "/zuss/version.json",
@@ -41,7 +40,7 @@ self.addEventListener("fetch", (event) => {
         return fresh;
       } catch {
         const cached = await caches.match(req);
-        return cached || new Response('{"version":"2025.12.24.10"}', { headers: { "Content-Type": "application/json" } });
+        return cached || new Response('{"version":"2025.12.24.11"}', { headers: { "Content-Type": "application/json" } });
       }
     })());
     return;
diff --git a/zuss/version.json b/zuss/version.json
index 6b1b196..cb0ce78 100644
--- a/zuss/version.json
+++ b/zuss/version.json
@@ -1 +1 @@
-{ "version": "2025.12.24.10" }
+{ "version": "2025.12.24.11" }