Clarify use of cacheKey #22
Description
cacheKey is marked as optional in the IDBCacheConfig interface, but leaving it undefined doesn't seem to actually work. I get this error after reloading the page:
Integrity check failed for key foo: IDBCacheError: The operation failed for an operation-specific reason
I also don't understand where the supposed security comes from, given that the key would need to be stored somewhere the browser can access it