From a1e5364f25ed6f9a1b69cd2a4c3ab5d6589df664 Mon Sep 17 00:00:00 2001
From: rene <mail@motocamp.de>
Date: Fri, 8 May 2026 11:27:06 +0200
Subject: [PATCH] =?UTF-8?q?Fix:=20iOS=20bfcache=20=E2=80=94=20=3F=5Ft=3Dti?=
 =?UTF-8?q?mestamp=20bei=20Update-Reload,=20wird=20sofort=20aus=20URL=20en?=
 =?UTF-8?q?tfernt=20(SW=20by-v770)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 backend/main.py                     | 2 +-
 backend/static/index.html           | 5 ++---
 backend/static/js/app.js            | 8 +++++---
 backend/static/js/pages/settings.js | 4 ++--
 backend/static/sw.js                | 2 +-
 5 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/backend/main.py b/backend/main.py
index 8ab8c91..64e5cb4 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -327,7 +327,7 @@ MEDIA_DIR = os.getenv("MEDIA_DIR", "/data/media")
 os.makedirs(MEDIA_DIR, exist_ok=True)
 app.mount("/media", StaticFiles(directory=MEDIA_DIR), name="media")
 
-APP_VER = "769"  # muss mit APP_VER in app.js übereinstimmen
+APP_VER = "770"  # muss mit APP_VER in app.js übereinstimmen
 
 @app.get("/api/version")
 async def app_version():
diff --git a/backend/static/index.html b/backend/static/index.html
index 9c3a025..b7990ef 100644
--- a/backend/static/index.html
+++ b/backend/static/index.html
@@ -578,7 +578,7 @@
 <script src="/js/api.js?v=94"></script>
 <script src="/js/ui.js?v=94"></script>
 <script src="/js/app.js?v=94"></script>
-<script src="/js/worlds.js?v=769"></script>
+<script src="/js/worlds.js?v=770"></script>
 
 <!-- Feature-Seiten werden lazy geladen -->
 
@@ -640,8 +640,7 @@
 
     // Wenn neuer SW die Kontrolle übernimmt → Seite neu laden
     navigator.serviceWorker.addEventListener('controllerchange', () => {
-      // location.replace statt reload() — bypassed iOS bfcache
-      window.location.replace(window.location.href);
+      window.location.replace('/?_t=' + Date.now());
     });
 
     navigator.serviceWorker.addEventListener('message', e => {
diff --git a/backend/static/js/app.js b/backend/static/js/app.js
index 68ee474..83d1b7c 100644
--- a/backend/static/js/app.js
+++ b/backend/static/js/app.js
@@ -3,9 +3,11 @@
    Router, State-Management, Navigation, Initialisierung.
    ============================================================ */
 
-const APP_VER     = '769'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
+const APP_VER     = '770'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
 const APP_VERSION = '1.5.0'; // ← semantische Version, wird bei make release gesetzt
 const IS_STAGING  = location.hostname === 'staging.banyaro.app';
+// Cache-Bust-Parameter nach Update-Reload sofort entfernen
+if (location.search.includes('_t=')) history.replaceState(null, '', '/');
 
 const App = (() => {
 
@@ -1037,8 +1039,8 @@ const App = (() => {
       btn.textContent = 'Lädt…';
       btn.disabled = true;
       sessionStorage.setItem('by_update_reload', APP_VER);
-      // Immer zur Root — location.href enthält ggf. Hash der App in alten Zustand navigiert
-      setTimeout(() => location.replace('/'), 800);
+      // ?_t= Timestamp zwingt iOS bfcache zur Aufgabe — wird beim Start sofort entfernt
+      setTimeout(() => location.replace('/?_t=' + Date.now()), 800);
       try {
         const reg = await navigator.serviceWorker?.getRegistration();
         if (reg?.waiting) reg.waiting.postMessage({ type: 'SKIP_WAITING' });
diff --git a/backend/static/js/pages/settings.js b/backend/static/js/pages/settings.js
index dbb2589..bc2fd40 100644
--- a/backend/static/js/pages/settings.js
+++ b/backend/static/js/pages/settings.js
@@ -764,11 +764,11 @@ window.Page_settings = (() => {
         if (serverVersion && serverVersion !== localVersion) {
           if (reg?.waiting) reg.waiting.postMessage({ type: 'SKIP_WAITING' });
           UI.toast.info(`Update auf v${serverVersion} — Seite wird neu geladen…`);
-          setTimeout(() => location.replace('/'), 1500);
+          setTimeout(() => location.replace('/?_t=' + Date.now()), 1500);
         } else if (reg?.waiting) {
           reg.waiting.postMessage({ type: 'SKIP_WAITING' });
           UI.toast.success('Update wird installiert…');
-          setTimeout(() => location.replace('/'), 1500);
+          setTimeout(() => location.replace('/?_t=' + Date.now()), 1500);
         } else {
           UI.toast.success(`Ban Yaro ist aktuell — Build ${localVersion}`);
         }
diff --git a/backend/static/sw.js b/backend/static/sw.js
index 42e7a1e..fcd9789 100644
--- a/backend/static/sw.js
+++ b/backend/static/sw.js
@@ -3,7 +3,7 @@
    Offline-Cache + Push Notifications + Tile-Cache
    ============================================================ */
 
-const CACHE_VERSION = 'by-v769';
+const CACHE_VERSION = 'by-v770';
 const CACHE_STATIC  = `${CACHE_VERSION}-static`;
 const CACHE_TILES   = 'ban-yaro-tiles-v1';  // bleibt über SW-Updates erhalten
 const CACHE_API     = 'ban-yaro-api-v1';    // API-Response-Cache