Wrong Keyboard input when using ssh into Azure VM

[timlod]

Microsoft Windows [Version 10.0.17134.648]

When using ssh from WSL to remote into an Azure DSVM (Ubuntu 16.04), certain key combinations do not work.
Specifically, CTRL-Backspace (or ALT-Backspace) do not work as intended.
CTRL-Backspace gives CTRL-H instead.
ALT-Backspace gives CTRL-ALT-H instead.
This was discovered in GNU emacs.

ssh user@hostname
$ emacs

Then try to use backward-kill-word using C-Backspace or M-Backspace; it generates C(-M)-h instead.

• What's wrong / what should be happening instead:
  The correct combinations should be input.

[timlod]

Update:
Issue doesn't require ssh, emacs from WSL terminal experiences the same problem.
Not sure now if it's an emacs from Windows Console problem, as in general I can delete a word in WSL bash using ALT-Backspace.

[WSLUser]

Any Console-related issues should be filed at https://github.com/Microsoft/Console/issues. WSL uses conhost (well technically ConPTY now but that's Insider builds) just like CMD or PS.

[therealkenc]

Yeah, punting only because you'll get a much better response over there. WSL proper doesn't know you have a CTRL key. As a work around you can try an alternative terminal emulator like wsltty or ttyd.