It has been fixed.

So, for several months, this thing wasn't working. Why? Well, you see, in Unity 2020, they updated their WebGL builder to automatically compress certain files in your WebGL project, most of them being crucial to actually loading the project. I assume this was to reduce strain on wifi connections and servers holding these programs. However, I didn't know this for a while and submitted a bug report about the projects not loading, and after a while, someone got back to me and basically said "Yeah, the webGL projects automatically compress" and gave me two ways to help fix this. The first way I looked up online and couldn't wrap my head around, and the second was just going into a settings menu and unchecking a box (which disabled the compression entirely), so I chose the second option. But like, if this is so important, why not, I don't know, make a tutorial about it? Or at least put a warning in the area where you build the project so people know why their WebGL projects aren't loading. Anyway, I fixed it.