WebKit IP and DNS Leaks Affecting Proxies and Private Relay

Talal Haj Bakry and Tommy Mysk (Mastodon, Hacker News, MacRumors, Mac Power Users): WebKit-based browsers on iOS and macOS can be configured to route all web traffic through proxy servers, which is how Tor browsers on iOS and our own Psylo work. We found three WebKit features DNS prefetching, WebAuthn Related Origin Requests, and [ ]