When I host it locally or on my website it works fine but when I upload the files to itch.io it doesn't seem to be working properly. I think this might be a bug with itch.io unless there is something special I have to do in order to upload games made with the godot engine.

How exactly it doesn't seem to be working properly. What's it doing (or not)? Are there any error messages in the browser console?

The message is  "cannot read property 'length' of null" it's not informative.

Hello! Some of my testers also reported this problem trying to play my game. I am using godot game engine for my game and I been researching this issue. I know that it should work for Chrome, as I tried it on my phone, my own personal computer, and another computer to verify the issue. Bing for what I see (by extension IE) does not work fully. Safari doesnt either. From what I gathered, its most likely a javascript error in the code and/or incompatibilities.  https://codeburst.io/uncaught-typeerror-cannot-read-property-of-undefined-in-javascript-c81e00f4a5e3 for my reference. I not sure it is full helpful, but this is the best I have at this time. If I find out more issues or fix the problem, Ill post again on this forum.

I turned off my add blocker and now it works just fine.

Well for anyone else searching for an answer, the issue may be the drivers the game depends on. GLES3/2 is not compatibility with Safari, Edge, IE but works with Chrome and Firefox.