Help with AJAX loading an Array on Itch

Hi, I just tried publishing my game to Itch.io (link here, doesn't work past menu) and it seems like the AJAX function which works fine to load an array on my desktop, isn't working properly on the site.

Here's what I'm using to load the array:

Here's what the console outputs on desktop:

Here's what the console outputs on the site:

It doesn't ever make it to the console line "Completed loading of data!" :(

pls help!

Ok, it turns out it was due to uBlock Origin I was using on Firefox. Adding itch.io to the whitelist fixed it.

Perhaps there's a way to warn people if this is happening? Might do some research on this and post here if i discover anything.