diff -r 3d4e9c994f10 -r a86126ab1dd4 wp/wp-includes/js/wp-ajax-response.js
--- a/wp/wp-includes/js/wp-ajax-response.js	Tue Oct 22 16:11:46 2019 +0200
+++ b/wp/wp-includes/js/wp-ajax-response.js	Tue Dec 15 13:49:49 2020 +0100
@@ -17,10 +17,10 @@
 		}
 		return r;
 	},
-	parseAjaxResponse: function( x, r, e ) { // 1 = good, 0 = strange (bad data?), -1 = you lack permission
+	parseAjaxResponse: function( x, r, e ) { // 1 = good, 0 = strange (bad data?), -1 = you lack permission.
 		var parsed = {}, re = jQuery('#' + r).empty(), err = '';
 
-		if ( x && typeof x == 'object' && x.getElementsByTagName('wp_ajax') ) {
+		if ( x && typeof x === 'object' && x.getElementsByTagName('wp_ajax') ) {
 			parsed.responses = [];
 			parsed.errors = false;
 			jQuery('response', x).each( function() {
@@ -51,7 +51,7 @@
 		}
 		if ( isNaN(x) ) { return !re.html('<div class="error"><p>' + x + '</p></div>'); }
 		x = parseInt(x,10);
-		if ( -1 == x ) { return !re.html('<div class="error"><p>' + wpAjax.noPerm + '</p></div>'); }
+		if ( -1 === x ) { return !re.html('<div class="error"><p>' + wpAjax.noPerm + '</p></div>'); }
 		else if ( 0 === x ) { return !re.html('<div class="error"><p>' + wpAjax.broken  + '</p></div>'); }
 		return true;
 	},
@@ -64,7 +64,7 @@
 	}
 }, wpAjax || { noPerm: 'Sorry, you are not allowed to do that.', broken: 'Something went wrong.' } );
 
-// Basic form validation
+// Basic form validation.
 jQuery(document).ready( function($){
 	$('form.validate').submit( function() { return wpAjax.validateForm( $(this) ); } );
 });