how to show full height of external page in iframe

Hi, I appreciate your plugin and support provided.

I would like for my iframe to show the full height of content of the external page and thought I could use one of the 2 attribute you’ve provided which are same_height_as=”body” or same_height_as=”html”, but this only shows part of the external page as shown here: https://sleepcoaching.com/news/the-high-price-of-sleep-deprivation/

I know I can add a specific height=xx as an option, but would prefer to use the same attribute consistently that automatically detects and shows the full height of the external. page within the iframe.

Is this possible?

Please advise.

The page I need help with: [log in to see the link]