It comes and goes, but it's still a pain. When it happens, it starts taking several minutes for Cookie Clicker to load in - and based on what it says at the bottom of my browser-screen, it's NOT because of Cookie Clicker itself. It just seems to insist on loading in all of the bloody ADDS before it's willing to start up, and some of them seem to have crappy servers. At the moment, it's 'image6.pubmatic.com' that it spends ages waiting on. Or rather, flickering back and forth between 'Looking up...' and 'Waiting for...' for a minute or two. At other times, it has been criteo.com or even googleadds.
It's a serious annoyance, especially when I'm trying to savescum some decent results from the breeding-projects in my farm. Is there anything that can be done, other than just waiting for it to pass (presumably because the troublesome add rotates out for now)?