[Hummingbird Pro] 403 errors for CDN files

A while ago, I contacted you guys about an issue with Hummingbird Pro, where it would give 403 errors for the WPMU CDN.

You asked me to let you know next time I came across a site with that problem (rather than just turning it off), and I’ve just found one.

The site URL and required credentials have been attached in the chat transcript. Please advice.