[bkardell]

Odd, works for me in Firefox, Chrome and Safari. They aren more shapes of text that match the video than images.

[basilikum]

I figured it out. It's the anti fingerprinting randomization of canvas data that destroys the image. Though, if it gets drawn on a canvas, is that really MathML?

Edit: I have looked some more into it. It's actually MathML and it seems to trace a video in real time. Somewhere in there is a canvas although I cannot find it in the element inspector.