diff -r 346c88efed21 -r 5e2f62d02dcd wp/wp-includes/js/wp-ajax-response.js
--- a/wp/wp-includes/js/wp-ajax-response.js	Mon Jun 08 16:11:51 2015 +0000
+++ b/wp/wp-includes/js/wp-ajax-response.js	Tue Jun 09 03:35:32 2015 +0200
@@ -12,7 +12,7 @@
 		return r;
 	},
 	parseAjaxResponse: function( x, r, e ) { // 1 = good, 0 = strange (bad data?), -1 = you lack permission
-		var parsed = {}, re = jQuery('#' + r).html(''), err = '';
+		var parsed = {}, re = jQuery('#' + r).empty(), err = '';
 
 		if ( x && typeof x == 'object' && x.getElementsByTagName('wp_ajax') ) {
 			parsed.responses = [];
@@ -24,7 +24,7 @@
 				response.supplemental = {};
 				if ( !jQuery( 'supplemental', child ).children().each( function() {
 					response.supplemental[this.nodeName] = jQuery(this).text();
-				} ).size() ) { response.supplemental = false }
+				} ).size() ) { response.supplemental = false; }
 				response.errors = [];
 				if ( !jQuery('wp_error', child).each( function() {
 					var code = jQuery(this).attr('code'), anError, errorData, formField;
@@ -54,7 +54,7 @@
 	},
 	validateForm: function( selector ) {
 		selector = jQuery( selector );
-		return !wpAjax.invalidateForm( selector.find('.form-required').filter( function() { return jQuery('input:visible', this).val() == ''; } ) ).size();
+		return !wpAjax.invalidateForm( selector.find('.form-required').filter( function() { return jQuery('input:visible', this).val() === ''; } ) ).size();
 	}
 }, wpAjax || { noPerm: 'You do not have permission to do that.', broken: 'An unidentified error has occurred.' } );