Is it possible to load the config of datatables async?

Looking at this example: http://datatables.net/reference/option/stateLoadCallback

It shows how to get the config via a synchronous ajax call. However newer versions of firefox do not support this. Is there a way to load it asynchonically?

Ideally you'd either have to accept a promise as return value, or provide a callback like fnServerData option has.

Thanks!