AJAX and itch io problem

Hi, I get this error from ajax.lastData after requesting a file.

My game is in itch.io and when I need to load a file that contains JSON data for a tilemap, I get this error:

<?xml version='1.0' encoding='UTF-8'?><Error><Code>AccessDenied</Code><Message>Access denied.</Message><Details>Anonymous caller does not have storage.objects.get

access to itchio/html/2021891/escenaPerdedorEscenario.dat.</Details></Error> 1

Ok, this problem happens because when exporting for HTML5 the file names are converted to lowercase.

The problem in my case is that I was using the name of the original file and was not converting it to lower case for the AJAX request.