Steps to reproduce: Create an IndexedDB object store where records have the following IDs: - 1 (number) - "1" (string) - [1] (array) Actual result: - the keys in the three rows are indistinguishable (their string representation is identical) - selecting and removing rows is broken, because the mapping between the keys and their string representation is not 1:1 All possible data types for IndexedDB record keys are described here: https://w3c.github.io/IndexedDB/#key-construct

IndexedDB also supports compound keys, which we should support at some point.

Valid key types are: - Numbers, except NaN. This includes Infinity and -Infinity. - Date objects, except where the [[DateValue]] internal slot is NaN. - Strings. - ArrayBuffer objects (or views on buffers such as Uint8Array). - Arrays objects.