Exclude a widget from caching

This could be something to do with the widget configs rather than Super Cache.
I Had some issues with widgets with countdown functions. Then I found out that the widget plugin developers can make it ignored by the cache.

Unfortunately the widget is probably not using Javascript to create the output and it’s being cached. This page shows how you can using dynamic caching but it’s rather technical unfortunately.

https://d2c.io/post/howto/advanced-wordpress-optimization-part-2-dynamic-caching-with-wp-supercache