How to whitelist additional CDNs?

I searched this community for quite a while and could not find the solution to my problem. Short version: I would like to whitelist CDNs at my own discretion, rather than turning off blocking features per site.

I’m a web dev and rely heavily on tinyMCE. At lest 50 custom CMSs load tinyMCE from their CDN at
Right now in order for me to use tinyMCE, I have to disable ‘Ads and trackers blocked’. But I don’t want to disable ads or trackers.

Therefore I would like to add to a personal whitelist, browser wide rather than per-site.

Any help is appreciated.