Forum: idempotente Antworten gegen Doppelpost/Cooldown-Fehler bei Funkloch (v1306)
Praxisfall: Antwort wird serverseitig erstellt, aber die HTTP-Antwort geht unterwegs verloren (schlechtes Netz). UI zeigt Fehler statt Erfolg, Text bleibt stehen -> Nutzer tippt erneut -> 2. Versuch laeuft in den 30s-Cooldown (429), der bereits gepostete Beitrag bleibt unsichtbar. - forum_posts.client_uuid (Migration). Reply mit stabiler client_uuid: Retry liefert den BEREITS erstellten Post zurueck (kein Cooldown/Doppelpost). - Frontend: UUID bleibt ueber Retries stabil, Reset erst nach Erfolg; Foto- Doppel-Upload bei Retry verhindert. - Anti-Spam-Cooldown bleibt fuer echte neue Posts aktiv. - Tests: tests/test_forum_idempotency.py (Retry=selber Post, Cooldown greift, ohne UUID rueckwaertskompatibel).
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9 changed files with 136 additions and 25 deletions
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@ -530,6 +530,8 @@ def _migrate(conn_factory):
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("forum_posts", "foto_urls", "TEXT"),
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("forum_posts", "is_deleted", "INTEGER NOT NULL DEFAULT 0"),
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("forum_posts", "likes", "INTEGER NOT NULL DEFAULT 0"),
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# Idempotenz: Client-UUID gegen Doppelposts bei verlorener Antwort (Funkloch)
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("forum_posts", "client_uuid", "TEXT"),
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# Users: Moderator-Flag + Forum-Standort
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("users", "is_moderator", "INTEGER NOT NULL DEFAULT 0"),
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("users", "forum_lat", "REAL"),
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@ -38,6 +38,7 @@ class ThreadCreate(BaseModel):
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class PostCreate(BaseModel):
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text: str = Field(..., min_length=1, max_length=10000)
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client_time: Optional[str] = Field(None, max_length=64)
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client_uuid: Optional[str] = Field(None, max_length=64) # Idempotenz-Schlüssel gegen Doppelposts
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class ThreadPatch(BaseModel):
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is_pinned: Optional[int] = None
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@ -402,12 +403,30 @@ async def create_post(thread_id: int, data: PostCreate, user=Depends(get_current
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if thread['is_deleted']:
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raise HTTPException(404, "Thread nicht gefunden.")
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# Idempotenz: Ein Retry mit derselben client_uuid (z.B. wenn die Antwort
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# des 1. Versuchs im Funkloch verloren ging) liefert den BEREITS erstellten
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# Post zurück — statt Cooldown-/Duplikat-Fehler oder Doppelpost. Der Client
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# behält die UUID über Retries hinweg und setzt sie erst nach Erfolg zurück.
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if data.client_uuid:
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existing = conn.execute(
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"""SELECT p.*, u.name AS autor_name, u.founder_number AS autor_founder_number
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FROM forum_posts p
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LEFT JOIN users u ON u.id = p.user_id
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WHERE p.user_id=? AND p.client_uuid=? AND p.thread_id=?""",
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(user["id"], data.client_uuid, thread_id)
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).fetchone()
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if existing:
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ed = dict(existing)
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ed['foto_urls'] = _parse_foto_urls(ed.get('foto_urls'))
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ed['user_liked'] = _user_liked(conn, user["id"], 'post', ed['id'])
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return ed
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ct = safe_client_time(data.client_time)
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_check_post_limits(user["id"], conn, data.text.strip(), user.get("created_at"), is_thread=False, now_client=ct)
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cur = conn.execute(
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"INSERT INTO forum_posts (thread_id, user_id, text, created_at) VALUES (?, ?, ?, ?)",
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(thread_id, user['id'], data.text.strip(), ct)
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"INSERT INTO forum_posts (thread_id, user_id, text, created_at, client_uuid) VALUES (?, ?, ?, ?, ?)",
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(thread_id, user['id'], data.text.strip(), ct, data.client_uuid)
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)
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conn.execute(
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"UPDATE forum_threads SET antworten = antworten + 1 WHERE id = ?",
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@ -86,14 +86,14 @@
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<title>Ban Yaro</title>
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<!-- Theme + theme-color Statusleiste vor CSS setzen -->
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<script src="/js/boot-early.js?v=1305"></script>
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<script src="/js/boot-early.js?v=1306"></script>
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<!-- CSS: Reihenfolge ist wichtig — ?v= zwingt Browser zur Neuladung -->
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<link rel="stylesheet" href="/css/design-system.css?v=1305">
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<link rel="stylesheet" href="/css/layout.css?v=1305">
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<link rel="stylesheet" href="/css/components.css?v=1305">
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<link rel="stylesheet" href="/css/utilities.css?v=1305">
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<link rel="stylesheet" href="/css/lists.css?v=1305">
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<link rel="stylesheet" href="/css/design-system.css?v=1306">
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<link rel="stylesheet" href="/css/layout.css?v=1306">
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<link rel="stylesheet" href="/css/components.css?v=1306">
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<link rel="stylesheet" href="/css/utilities.css?v=1306">
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<link rel="stylesheet" href="/css/lists.css?v=1306">
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</head>
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<body>
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@ -624,12 +624,12 @@
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<div id="modal-container"></div>
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<!-- JS: Reihenfolge ist wichtig — erst Basis, dann Features -->
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<script src="/js/api.js?v=1305"></script>
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<script src="/js/ui.js?v=1305"></script>
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<script src="/js/app.js?v=1305"></script>
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<script src="/js/worlds.js?v=1305"></script>
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<script src="/js/offline-indicator.js?v=1305"></script>
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<script src="/js/contact-form.js?v=1305"></script>
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<script src="/js/api.js?v=1306"></script>
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<script src="/js/ui.js?v=1306"></script>
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<script src="/js/app.js?v=1306"></script>
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<script src="/js/worlds.js?v=1306"></script>
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<script src="/js/offline-indicator.js?v=1306"></script>
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<script src="/js/contact-form.js?v=1306"></script>
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<!-- Feature-Seiten werden lazy geladen -->
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@ -639,7 +639,7 @@
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<!-- Boot: Offline-Banner + SW-Registration (extrahiert für CSP) -->
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<script src="/js/boot.js?v=1305"></script>
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<script src="/js/boot.js?v=1306"></script>
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</body>
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@ -3,7 +3,7 @@
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Router, State-Management, Navigation, Initialisierung.
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============================================================ */
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const APP_VER = '1305'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
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const APP_VER = '1306'; // ← bei jedem Deploy mit Frontend-Änderungen erhöhen
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const APP_VERSION = '1.6.0'; // ← semantische Version, wird bei make release gesetzt
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window.APP_VER = APP_VER; // global verfügbar für andere Module (z.B. offline-indicator)
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window.APP_VERSION = APP_VERSION;
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@ -751,20 +751,33 @@ function _fmtDate(iso) {
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if (postsListEl) _bindPostActions(postsListEl, thread.id, uid, isMod);
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// Reply abschicken
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// Idempotenz-Schlüssel: bleibt über Retries STABIL und wird erst nach
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// erfolgreichem Senden zurückgesetzt. So liefert ein Retry (z.B. wenn die
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// Antwort des 1. Versuchs im Funkloch verloren ging) denselben Post zurück
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// statt eines Cooldown-Fehlers/Doppelposts.
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let _replyUuid = null;
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document.getElementById('ft-reply')?.addEventListener('click', async () => {
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const btn = document.getElementById('ft-reply');
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const text = document.getElementById('forum-reply-text')?.value?.trim();
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if (!text) { UI.toast.warning('Bitte Text eingeben.'); return; }
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if (!_replyUuid) {
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_replyUuid = (window.crypto && crypto.randomUUID)
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? crypto.randomUUID()
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: `${Date.now()}-${Math.random().toString(16).slice(2)}`;
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}
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await UI.asyncButton(btn, async () => {
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const post = await API.forum.addPost(thread.id, { text, client_time: API.clientNow() });
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const post = await API.forum.addPost(thread.id, { text, client_time: API.clientNow(), client_uuid: _replyUuid });
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// Foto hochladen falls vorhanden
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// Foto hochladen falls vorhanden — bei idempotentem Retry hat der Post
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// seine Fotos bereits, dann NICHT erneut hochladen (kein Doppel-Upload).
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const files = Array.from(document.getElementById('forum-reply-file')?.files || []);
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for (const file of files.slice(0, 5)) {
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try {
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await API.forum.uploadPostFoto(post.id, file);
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} catch (e) { /* Foto-Upload-Fehler ignorieren */ }
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if (!post.foto_urls || post.foto_urls.length === 0) {
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for (const file of files.slice(0, 5)) {
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try {
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await API.forum.uploadPostFoto(post.id, file);
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} catch (e) { /* Foto-Upload-Fehler ignorieren */ }
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}
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}
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thread.antworten = (thread.antworten || 0) + 1;
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@ -782,6 +795,7 @@ function _fmtDate(iso) {
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document.getElementById('forum-reply-text').value = '';
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const previews = document.getElementById('forum-reply-previews');
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if (previews) previews.innerHTML = '';
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_replyUuid = null; // Erfolg → nächste Antwort bekommt eine frische UUID
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UI.toast.success('Antwort gesendet.');
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});
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});
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@ -4,7 +4,7 @@
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta name="color-scheme" content="light dark">
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<script src="/js/landing-init.js?v=1305"></script>
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<script src="/js/landing-init.js?v=1306"></script>
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<title>Ban Yaro — Die Hunde-App für Deutschland, Österreich & Schweiz</title>
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<meta name="description" content="Ban Yaro: Die kostenlose All-in-One Hunde-App für DACH. Tagebuch, Giftköder-Alarm, Training mit KI, Forum, Wurfbörse, Stammbaum, Inzucht-Check — DSGVO-konform, offline-fähig, direkt im Browser oder als native iPhone-App (Ban Yaro Go).">
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<meta name="keywords" content="Hunde App, Hunde Community, Wurfbörse, Züchter, Welpen kaufen, Stammbaum Hund, Inzuchtkoeffizient, Hundezucht, Impfpass Hund, Giftköder Alarm, Gassi Community, Hundetraining App, Hunde Forum, Hunde KI, Hundefilm Datenbank, Welpen Marktplatz">
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@ -4,7 +4,7 @@
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============================================================ */
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// ← EINZIGE Stelle für die Version — STATIC_ASSETS und CACHE_VERSION leiten sich ab
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const VER = '1305';
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const VER = '1306';
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const CACHE_VERSION = `by-v${VER}`;
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const CACHE_STATIC = `${CACHE_VERSION}-static`;
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const CACHE_TILES = 'ban-yaro-tiles-v1'; // bleibt über SW-Updates erhalten
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