Chome on Windows. Grab the right scroll bar and pull to the very bottom. Once at the bottom try to scroll down with mouse scroll wheel. Screen goes blank and the error appears in the console.
No spoilers, but the last one's a doozy!
for a while I thought I had an off by one error, which was pretty funny to think about in the context of trillions of items. but in fact I was just doing some bad react state management.