Any ideas here?
Client is using Host Gator and is the only thing that I can think of that would be causing this issue.
https://landwaccounting.com/tax-tips-and-resources/test/ is a blank html theme, with Offsite and text with the link that the iframe is supposed to show.
https://landwaccounting.com/tax-tips-and-resources/tax-tips/ is a Foundry page.
I set up a blank HTML page with no stacks. https://landwaccounting.com/tax-tips-and-resources/testhtml/