That exact error isn't being thrown anymore. But as soon as I launch it I get 250 WebGL errors (actually more, but it just stops reporting them past 250). And the clickers still do not work.
Thanks for checking again. Looks like somethingn local in your browser, as I can see many people play online every day. Not sure how to debug this. Suggest you try the Windows version for now, that's the best I can do at the moment. Sorry.