This extension is based on a script by David J. Bradshaw: https://github.com/davidjbradshaw/iframe-resizer
iFrame Resizer automatically resizes the height and width of iFrames to fit their contained content.
This solution consists of 2 extensions:
• iFrame Resizer, This extension must be placed on the page with the inline frame, also known as the ‘Parent’.
• iFrame Resizer – Content. This extension must be placed on the content page. The page that is displayed inside the inline frame. Also known as the ‘Child’.