Thanks for the advice. Unfortunately I removed all the game files from my device so I'll probably just delete the game, but I'll try harder in my next jam. Could you link me to a site explaining the differences by chance?
I typically only find answers on an issue specific basis, but here are the Unity pages giving an overview and what the platform does/does not support, and then the WebGL debugging page. For you specific issue I would also do the standard google search which should be able to help out too, since it seems like a lot of people have issues with WebGL builds/builds in general.