Eh, its probably never going to happen. I'm sure less than 1% of sites would serve a favicon via data uri not to mention racing the favicon along with the domain on first visits speeds up the process.
Favicons are already transferred a lot. Back in the day having notifications / unread counts in the favicon itself was very common. It would show up in the tab bar and also the bookmark icon so it was a quick micro-communication channel with a website before all the modern things.
Favicons are already transferred a lot. Back in the day having notifications / unread counts in the favicon itself was very common. It would show up in the tab bar and also the bookmark icon so it was a quick micro-communication channel with a website before all the modern things.