triggers click on spacebar key

gistfile1.js

/*
MDN: using the button role https://developer.mozilla.org/en/Accessibility/ARIA/ARIA_Techniques/Using_the_button_role
-----
Warning: Be careful when marking up links with the button role. Buttons are expected to be triggered using the Space key, 
while links are expected to be triggered through the Enter key. In other words, when links are used to behave like buttons, 
adding role="button" alone is not sufficient. It will also be necessary to add a key event handler that listens for the 
Space key in order to be consistent with native buttons.
-----
*/

$('body').on('keypress','[role="button"]', function(e){
	if(e.which === 32){
		e.preventDefault();
		$(this).trigger('click');
	}
});