How to enable 'Access-Control-Allow-Origin' header for all files in a directory of XAMPP?

Create a file called ".htaccess" in the directory of your files and add the following to the file.

Header set Access-Control-Allow-Origin "http://localhost:50000/"

You need to create the .htaccess file first and put it on your root document of application and then set it at the beginning of the file

Header set Access-Control-Allow-Origin *

Cheers,