Whitelist to allow onebox only with https domains?

I think you’re forgetting about the entire section of the internet dedicated to hosting and delivering content. Giphy, Imgur, youtube, vimeo, etc. Additionally, almost all of the content our users are posting are from their own portfolio websites, either self hosted, or once again on content delivery platforms (art station, medium, etc)

Is that true even when this flag is unchecked?
image

Yes, I’m aware of the various ways that I can self host. That $5 when combined with CDN fees, stored for perpetuity combined with exponential growth of users and content doesn’t lead down a path that I’m interested in pursuing without exploring other options.

I appreciate both of your responses, but neither of you actually addressed the question I’ve asked:

I know I can whitelist only explicit domains, but I’m curious if it’s possible to set to allow any https domain.