I have a form in which the Submit button does not sit within the tags. The submit button has an click handler to submit the form via jQuer
click
On jquery 1.11.1
I've managed it like that:
$(yourForm).on('submit',{'yourExtraData':extraData},function(event){ alert('your extra data ' + event.data['yourExtraData'] + ' went thru'); });
Check also: https://api.jquery.com/event.data/