1.4.7
[Added] PersistenceXMLHttpRequests now allow for Abort/Timeout/Upload functionality.
The Abort and Timeout features both require the AbortController API to be present within the browser otherwise will they will result in a no op. For Timeouts, the timeout event will fire but without the AbortController API, the request to the server itself is not aborted after timing out.
IE11 does not have the AbortController API.