[gsnedders]

While this is an obvious route you could take, this is a significant jump from the current behaviour where the content has to be signed by the owner of the domain that packaged it and is treated as if it was served by that domain (on a given scheme/port), and the same-origin policy applies like normal, and thus the ads would continue to be treated as third-party.

It _does_ potentially allow performance gains, insofar as you're then able to send a single bundle containing both first and third party content, but it isn't a gain from the point-of-view of avoiding adblockers (aside from the most primitive DNS/IP level ones).