How to access an HTML widget attachment in an IFRAME Tag

Question

How do I access an HTML widget attachment in an IFRAME Tag in Velocity? I have tried the following, but it is not working. It is simply downloading the HTML file.

Michael Monteleone · Accepted Answer

Instead of using a raw HTML file, use a VM file as your attachment along with GetExecutedFileUrl instead of GetFileUrl. Not only will this work as you're expecting, but you'll also be able to execute script and other APIs inside the framed content. Widget Content: Widget Attachment: iframe.vm Test Content
Current User: $core_v2_user.Accessing.DisplayName
Current Time: $core_v2_utility.CurrentDate