Pop up plugin doesn't seem to work for dashboard urls

I have Pop Up! Installed on a subsite. The plugin works on specific published urls like http://mysite.com/subsite but not on dashboard wp-admin urls such as http://mysite.com/subsite/wp-admin/post.php?post=290&action=edit
How do I fix?

I am using the same browser for testing both urls
I am using the same pop up activation conditions except the url