@f09fa681 this attack is in no way the same. The WebRTC one was about the IP address of the target. IP address provides much, much more exact location data.
This attack only gives the attacker information on which Cloudflare datacenter had the resource cached. In other words, that the target is in teh "capture area" of that datacenter.
That is orders of magnitude less exact than having an IP address of the target.
Again, you are confusing two different things, and comparing apples to oranges.