Hi shade
As long the URL is not visible to the end user, we should be within the Whitelabel.
But if you want to change the script URL and the widget direct URL, there is a simple way to do it.
1. Changing the script URL
You can visit the direct script source and download the JS file (CTRL+S to save the file), then upload it to your own server (or CDN) and import it to your page.
2. Changing the widget's direct URL
You can do the same with the page content, view the source code and copy it to a page hosted on your servers.
I hope this helps,
Thanks!