>This ruling can't be allowed to stand.

Sounds like a great ruling from a security and user perspective. Just changes a design paradigm. If it kills a business model that's based on intrusive user-tracking and the user being totally unable to know who has their data and who their computer should vs shouldn't be connecting to - great.

Trying to figure out from traffic analysis alone these days whether a website is malicious or not is an absolute nightmare as every single site pulls in 20 or 30 externally-hosted resources for totally impenetrable purposes.

Let's migrate to an easily understandable model where sites host 100% of their own resources. If that means the site engine has to run CI behind the scenes and pull in those resources, great, it centralises responsibility.