Pagetree Macro Spins when Viewed Using Internet Explorer Due to Invalid HTML
Pages that make use of the Pagetree Macro may spin or constantly reload, when viewed using Internet Explorer (IE). NOTE: This does not affect Firefox, it only affects IE.
Completely remove your Custom HTML from
Browse >> Administration >> Custom HTML, or make sure that it is using well-formed HTML.
If you need assistance verifying that your Custom HTML is well-formed, you can use the W3C Validator through online, upload or direct input. This service is free.