This is an unusual problem I have noticed with my site when I scroll up and down quickly on a long page.
I don’t know if this is just caused by loading a long page full of images, excerpts and code blocks (which are themselves scroll-able).
Bit of a difficult thing to figure out when there are so many possible causes…
It only seems to happen when I scroll quickly/violently so I’d assume it was a loading issue.
But then the white spaces don’t linger on Edge so it might be a Chrome issue.
But then why doesn’t it happen on mobile?
I’ll probably post a question on a forum somewhere and put the solution here if I can find one.
Update:
Turns out the problem was rather simple, the html was white while the body was black.
Whenever the body failed to load quickly enough the white html background was revealed.