Error event of form plugin

[Xiaolin]

There is a "success" event in form plugin, which will be fired when the form is submitted success, but what if the submission is failed? Do we have a event something like "error"?

[stworthy]

The success callback function of form plugin is fired when the response data returned from server, which usually takes correct and error data. The submit action is processed by using invisible iframe and not by XHR, so we don't need the error callback function.