I got a different ad, viewing on Nexus 5 I get a non-video ad that fills my entire screen, but the X box is off the right of the screen and I can't scroll or pi

I got a different ad, viewing on Nexus 5 I get a non-video ad that fills my entire screen, but the X box is off the right of the screen and I can't scroll or pinch to view it & click on it to make the ad go away. Made the page completely unreadable for me. (Going back and clicking the link again, I can now read the article.)