Hi all,
I wonder what people think of if we started to rather aggressively deprecate the horrible API main-thread sync XHR? Currently its usage is still way too high (up to 2% based on telemetry data), but if all the browsers warned about use of deprecated feature, we might be able to get its usage down. And at least we'd improve responsiveness of those websites which stop using sync XHR because of the warning. -Olli
