I now have it working in Chrome on my Surface Book running WIn10.  Fix was turning acceleration on. I had to turn it off for something I was doing in the past, don't recall what, but it's on now and the heatmap page loads.     Now to figure out why it's still not working on the Mac! (Acceleration on Mac's Chrome is already on).   Support ticket hasn't been much help. They don't know why it's broke  on my machine either. FWIW: It's not my account related. ... View more

kYutobiu - you're right, @pjc's image is a Firefox window. ... View more

Does same thing in incognito mode.  ... View more

Already at version 77 on both systems and completely cleared history/cache on both machines.  I can see it loading the [age ten crashed with the grey box in the main page frame with the message. as seen below:  ... View more