Returns an idle Promise instance that is already rejected with the given reason.
Any chained operations will execute asynchronously using the orequestIdleCallback API
(if available) with the optional provided timeout value to schedule when the chained items will
be executed. (eg. catch(); finally()).
Returns an idle Promise instance that is already rejected with the given reason. Any chained operations will execute asynchronously using the o
requestIdleCallbackAPI (if available) with the optional provided timeout value to schedule when the chained items will be executed. (eg.catch();finally()).