URL ENCRYPTION - SITE DISPLAY PROBLEM

Good evening Fortiweb admins,

I have noticed an issue with the "URL Encryption" feature on FortiWeb. When I enable my URL Encryption policy, the URLs are successfully encrypted.

However, this distorts the design of the protected website:

• The site’s appearance is no longer the same.

• Some elements are missing.

• Colors change.

• In some cases, only the HTML code is displayed without the CSS, Bootstrap, and other resources.

Does anyone have any idea about the root cause of this problem?