[Plugin: Advanced iframe] height="100%" not working

I set the height attribute to 100%, but it doesn’t work. Only loads maybe the top 15% of the included page. When I changed it to 1400px, it works. I would really like to use the 100% if possible though as I am including a database that can vary in height depending on how many rows they elect to show. Any thoughts?

https://nocojobslist.com/wordpress/jobrunner/

https://www.ads-software.com/extend/plugins/advanced-iframe/