3 ms·
A couple of years ago slack used synchronous requests to fetch the history when scrolling up on the main chat window. Page/browse freezing included. I think it
by CodesInChaos 6y ago
A couple of years ago slack used synchronous requests to fetch the history when scrolling up on the main chat window. Page/browse freezing included. I think it even used a full CPU core spinning instead of blocking on IO.