deferred.reject()

Normally, only the creator of a Deferred should call this method; you can prevent other code from changing the Deferred's state by returning a restricted Promise object through deferred.promise().

When the Deferred is rejected, any failCallbacks added by deferred.then() or deferred-fail() are called- Callbacks are executed in the order they were added- Each callback is passed the args from the deferred-reject() call- Any failCallbacks added after the Deferred enters the rejected state are executed immediately when they are added, using the arguments that were passed to the deferred-reject() call- For more information, see the documentation for jQuery.Deferred().