> Why not allow alternative browser engines that follow strict privacy practices? It isn't just a privacy argument. Browsers need security exceptions for full

> Why not allow alternative browser engines that follow strict privacy practices? It isn't just a privacy argument. Browsers need security exceptions for full performance, such as compilation of Javascript/WebAssembly. The browsers may also not have enough process infrastructure to support their native sandboxing strategy on iOS. Someone can make arguments on whether Blink's rendering engine would have business motivation for an iOS port. However, the sandboxing and javascript differences were large motivating technical factors in Blink forking from WebKit in the first place.