URL Mapping was created to help you change JS and CSS URLs that Hide My WP didn’t change into custom once without breaking the website functionality.
You can add a list of URLs you want to change into new ones.
It’s important to include only internal URLs from your frontend source code after you activate the plugin in Safe Mode or Ghost Mode.
from: https://yourdomain.com /assets/f9f4ca341/main.css
Note: If you have Nginx server, this action requires a Nginx service reload.