NEW DISCOVERY: After properly reading the errors, I saw that it had something about Fullscreen attributes not working. When I FSed, the game was in a weird frozen state of the character selection. I clicked where Azura usually is, and where the play button usually is, then FSed. Then I was in the Azura game. Exiting the level brought be back to a frozen glitchy state.

I found that using another browser (Safari, Opera, etc.) is completely fine. I'll just use those in the future.

ITS FIXED!!! woohoo, baby