Email on connect.xfinity.com blocked by video popup

I tried using webmail in my browser today and found an impossible to close video popup the prevents me from reading an emails - I tried it on two different browsers and got two different popups, but behavior is identical - first one is what I see in my Mozilla browse:

Second one is what I see in MS Edge - how can I close this popup so I can use email? This is ridiculous. Clicking on the 3 dots in upper right corner and trying to select "close" just closes that dialog box, doesn't close the video popup.