97085 2012-09-19 02:03:48 -0700 Input required not working 2016-06-24 08:45:41 -0700 1 1 1 Unclassified WebKit WebCore JavaScript 528+ (Nightly build) All All RESOLVED DUPLICATE 59019 P2 Normal --- 0 ukjbrooks webkit-unassigned ap jonlee m.kurz+webkitbugs paulirish tkent oldest_to_newest 723395 0 ukjbrooks 2012-09-19 02:03:48 -0700 I was testing Modernizr.input.required earlier in Safari which returned true, even though it's unsupported in Safari. This bug has been confirmed by Paul Irish in Safari 5.1 (https://github.com/Modernizr/Modernizr/issues/697) I believe Chrome has this built in, but Safari is totally unsupported - http://jsbin.com/upokin/1/ 723676 1 ap 2012-09-19 11:18:07 -0700 It's unclear from the linked report what the WebKit bug is here. What does Modernizr do that makes it arrive at the wrong conclusion? 723945 2 tkent 2012-09-19 16:29:04 -0700 (In reply to comment #0) > I was testing Modernizr.input.required earlier in Safari which returned true, even though it's unsupported in Safari. This bug has been confirmed by Paul Irish in Safari 5.1 (https://github.com/Modernizr/Modernizr/issues/697) This conversation is about interactive validation feature. Safari supports the required attribute. - <input required> correctly matches :invalid selector - input.validity.valueMissing correctly returns true for <input required> But form submission is not prevented because Safari has no interactive validation feature. *** This bug has been marked as a duplicate of bug 59019 ***