Web Application Firewall - Blocked Ajax Requests
As the admin of the site, you can choose to whitelist these blocked requests by clicking the Whitelist button, if you were simply working on the site when they occur. The message is only shown for logged-in admins of the site, so regular visitors, subscribers, authors, editors, or other types of users on your site will not see them.
If you see this message when clicking a link that was sent to you by another person, or a link from another site that leads to your site, it may not be safe to whitelist. You can contact us about blocked requests if you are not sure whether they are dangerous or not. Be sure to include a description of what you were working on at the time.