I'm seeing some adsense ad blocks on my site without any ads.
Just a blank frame with white background and text "Loading...".
When hovering the mouse over that text a title comes up saying "Shop at Target".
My guess is it's one of the third party networks screwing up image/rich media ad delivery.
Does anyone else see this?
Is there anything I can do? I can't block the advertiser because I don't know the domain. And writing to AdSense support seems like a waste of time (sadly).