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<html><head><script>if (!window.indexedDB) { alert("Sorry! Your browser does not support IndexedDB.");}// Open databasevar db;var request = window.indexedDB.open("MyFamily");// Error handlingrequest.onerror = event => { console.error("Database error: " + event.target.errorCode);};request.onsuccess = event => { db = event.target.result;};</script></head><body></body></html>