I have a visualforce page that is an iframe into our web based document management system(DMS). There is a custom field on the account that holds the URL for that clients specific file folder within the DMS. The iframe utilized that field. This was working up until a few months ago. It was great! My users were literally able to use the DMS system right from within the Salesforce account record. It really helped adoption and encouraged users to work from within Salesforce instead of navigating out to the other system. I submitted a ticket to Salesforce when we discovered this iframe was no longer loading and the answer I received was that they no longer allow iframes and that I was just out of luck. I find it hard to believe that they just took functionality away with no new feature to replace it. Has anyone else experienced this or found a solution?