If your application is targeting for iOS 6.0 or newer and is using Web SQL Database, the files created by the database are stored in the iCloud by default (when BackupWebStorage parameter is set to cloud). In such case, your app may be rejected if you did not declare the app to use iCloud when submitting to the App Store. Accordingly, Web SQL Database files will not be stored in the iCloud backup storage when BackupWebStorage parameter is set to none. If you want to backup your data to iCloud, please set the parameter to cloud.