[leephillips]

When on this page almost all my keyboard shortcuts stopped working and it was difficult to close the page. I consider this a form of malware.

[pekim]

The page appears to install global keydown/up handlers that swallow all key events. And it also disables the browser's context menu.

[nighthawk454]

It’s running flawlessly on my iPad mini. Perhaps the site isn’t the issue.

[zamadatix]

I don't think they mean the performance or anything like that, rather the site literally requests to eat all keyboard events (among other things). To even open dev tools on a completely different system I had to do it via the browser menu as right click, Ctrl+Shift+I, and f12 were set to be globally consumed for input on the site instead of just certain needed events in the app area.