WP Super Cache Breaks Youtube plugin

I am using the Youtube plugin
https://ww.wp.xz.cn/plugins/youtube-embed-plus/
When WP Super Cache is activated the youtube embed button would not work at all and after a lot of messing around switching off all plugins and reenabling one by one I discoverd that it will not work when WP Super Cache is active.

if it helps I have wp super cache setup with minimal settings using legacy cache so that bad behaviour will work.

https://ww.wp.xz.cn/plugins/wp-super-cache/