Unfortunately due to us trying to catch up with the deadline we couldn't test the game on browser and found out it's broken way too late. For now we recommend downloading the game to try it out. I don't have a Mac myself, but I've heard Wine is available on it, so maybe you could try that? As soon as the jam's over, a fixed browser version will be uploaded. A dedicated Mac build most likely will be made as well, as several team members have a Mac themselves. Sorry for the inconvenience.