At this point I'd recommend instead uploading it as a zip file for PC/Mac/Whatever and figuring out an HTML5 upload after that. The official Godot documentation has a bit on exporting for PC. Here's the documentation I was browsing.
If fixed it!!! I used that one tile map for all my sprites, so I put that tile map in a slicer application, and used the spliced images, then exported it! Thank you so much still for helping me!
