Based on the feedback from Jonas, Cameron, and Anne, we updated the exception and error model in the IndexedDB spec [1]. Now, we match the DOM Level 4 events and error models.
The IDBDatabaseException interface was replaced with DOMException. The const error codes were replace with error type names. We are reusing the DOM 4 Level exception names, where possible. Where not possible, we introduced new error names to be used in the exceptions and error events. Also, the errorCode attribute was replaced with a DOMError attribute which contains an error object. Please review and let us know if we missed anything. Israel [1] http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html
