Rewritten the ng-submit ( directive of angularjs ), to fix the Safari's HTML5 'required' tag non-tollerance.

ng-submit.coffee

#
# REWRITTEN NG-SUBMIT DIRECTIVE 
# TO FIX THE SAFARI'S HTML5 'REQUIRED' TAG 
# NON-TOLLERANCE 
#
angular.module("powerhtml").directive("ngSubmit", ->
	restrict: "A"
	priority: 1
	
	link: (scope, elm, attrs) ->
		
		#
		# NG-SUBMIT IS ALREADY ON A FORM TAG
		# SO BIND THE SUBMIT EVENT
		# 
		elm.bind( "submit" , (event)->

			# CHECK IF THE FORM IS VALID
			if !scope[elm.attr("name")].$valid
				e.preventDefault()
				false
			else
				# EXECUTE THE FUNCTION ALREADY PASSED IN NG-SUBMIT IN THE PARENT FORM
				scope.$apply( attrs.ngSubmit )
		)
		
		true
)

Replace "event" with "e"
https://gist.github.com/AndreaPaciolla/9415321#file-ng-submit-coffee-L16