保存Wordpress页面时,ED.saveHTML被阻止

After implementing SSL and upgrading to 4.3 my Wordpress is unable to commit changes to the post or page status, visibility, or save any page meta - although anything in the main editor window can be updated nothing else changes.

Repairing the database and uploading a fresh copy of the wordpress core has not fixed the problem.

The only error I can see is in the javascript console. When the 'update' button is clicked ED.saveHTML is blocked and editor.js?ver=4.3:428 ED.saveHTML is blocked, this appears three times.