for some reason, the web version is just completely blank for me, it's all just a bunch of black boxes and gray ones too
I know what you mean, it happened when I checked the page in incognito. Maybe you have to accept cookies or something..? regardless, it fixed the next time I tried playing it, non-incognito.
I can only imagine it might be something like that.. you can also try downloading the demo, since that's what the web version is.