Popup plugin does not load popup content

Hello,

I've given up on getting geo targeting to work for the Popup plugin, and decided to use static content instead. All I have is an image in the Popup content area, and it doesn't show up at all - all that shows is the border of the popup.

I've confirmed that the image url is correct. The popup is for referrer, and the referral pops up correctly, but no content shows up.

I have a cdn, so I've also made sure to purge the cache before writing to you guys.

Thank you for any help.