The flip-side is that IndexedDB being an independent spec means they are able to extend it in ways that wouldn't be possible with WebSQL. For example, in Indexe

The flip-side is that IndexedDB being an independent spec means they are able to extend it in ways that wouldn't be possible with WebSQL. For example, in IndexedDB you can store arbitrary Blobs as values. This means you could store an HD movie if you wanted. With WebSQL you had to base64 encode blobs to store them. I think this articles kicks on one key thing that explains the lack of enthusiasm around IndexedDB... people primarily want a database on mobile. And iPhone doesn't support IndexedDB yet, that is enough to kill it.