The ‘storage’ attribute in options passed to indexedDB.open is deprecated and will soon be removed. To get persistent storage, please use navigator.storage.persist() instead.
Zaharkituta dago indexedDB.open metodoari pasatako aukeretako 'storage' atributua eta kendu egingo da laster. Biltegiratze iraunkorra lortzeko, horren ordez erabili navigator.storage.persist().