WebGL build not loading in Unity play

Getting Started
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1

I’m currently going through the Junior Programmer course, and trying to upload a WebGL build, but when trying to play it, it is just stuck on the loading bar. If I do a build and run it works, but not after uploading a zip file to unity play.
Here’s a link to the game, if anyone can tell me what’s wrong, I’d very much appreciate it!
Prototype 5

2

Thanks to this, I seem to have it working now