Our application iframes the zoho customer portal. It is available for anyone to view. As of a couple of days ago we get this error in ie;

 

This conent cannot be displayed in an iframe

To help protect the security of information you enter into the website, the publisher does not allow content to be displayed in an iframe.

 

firefox just shows a blank page.

 

We haven't made any changes in weeks, and this appears to have started a few days ago. Thoughts?

 

B