Ticket #50064: 50064.patch

src/js/_enqueues/admin/custom-background.js

@@ -127 +127 @@
                                 // Grab the selected attachment.
                                 var attachment = frame.state().get('selection').first();
 
-                                // Run an AJAX request to set the background image.
+                                // Run an Ajax request to set the background image.
                                 $.post( ajaxurl, {
                                         action: 'set-background-image',
                                         attachment_id: attachment.id,