There is plenty of third party javascript that is not at all predatory. Pretty much all analytics services, Olark and other similar customer outreach services,

There is plenty of third party javascript that is not at all predatory. Pretty much all analytics services, Olark and other similar customer outreach services, A/B testing suites. There is far more of a push to create new more secure avenues for third party js (namely cors and websockets) to exist than there are efforts to eliminate it. I'm curious how this change will effect services like optimizely that rely on third party cookies to prevent tests being run on the same users multiple times.