https://news.ycombinator.com/item?id=30136221 https://news.ycombinator.com/item?id=30136221 > The browsers don't share third-party caches across domains, becau

https://news.ycombinator.com/item?id=30136221 https://news.ycombinator.com/item?id=30136221 > The browsers don't share third-party caches across domains, because it made it easier to leak information about which sites the user has visited.