I tried that and couldn't get it to work. Seems I'm not the only one with problems https://github.com/axemclion/IndexedDBShim/issues https://github.com/axemclio

I tried that and couldn't get it to work. Seems I'm not the only one with problems https://github.com/axemclion/IndexedDBShim/issues https://github.com/axemclion/IndexedDBShim/issues Admittedly I could invest more time to try to get it working, but iOS represents a relatively small fraction of my users and even a working shim could have problems (IIRC there are serious bugs with WebSQL in iOS 7, not sure if they've been fixed; also, I don't know what this shim approach would do to performance in an IndexedDB-heavy app).