Can't clear / scroll-back buffer when using tail -f alacritty?

When I use tail with the -f option, I can not find anyway to clear the screen. It just shows a ^L. Same problem when following live logs with docker. While I'm just in the shell, the cmd-k works fine. I raised this issue on github (https://github.com/alacritty/alacritty) , but they quickly dismissed this as not their problem. Can anyone shine some light on whats going on? I would assume the screen clearing is part of the Terminal app. Apple's default Terminal and iTerm seem to have no problem with this. Thanks!