Problem Description

You encounter a problem when attempting to insert an iframe in the content of your site. This may exhibit itself in a few different ways:

• You insert the iframe, try to save what you're doing and things appear to freeze. When you try to save the page, the iframe does not show up on the live page.
• You get a forbidden error

This is caused by a firewall rule. Generally, it's no longer that common to use iframes in websites, so our firewall believes it to be malicious behaviour. 

Problem Resolution

See our guide on working with the web application firewall to help learn which rules are being triggered by the iframe insertion and then you can opt to exclude just those rules or disable the firewall entirely during development. Just remember that, for optimal security of your site, it's best to re-enable the full firewall protection when you're done building the site or page that you're working on.