fish shell + WebStorm terminal: how to use Alt + backspace to delete entire word

Question

I am trying out WebStorm and I use fish as my default shell. I am using macOS.

In VSCode's integrated terminal, iTerm2, and terminal my fish shell works as I want it: it deletes an entire word with Alt + backspace.

When I am in WebStorm's integrated terminal this does not work. I have not been able to find any solution to this problem.

How can I get Alt + backspace to delete an entire word (kill-word) in WebStorm's integrated terminal?

I have tried changing the key bindings for fish shell.

In iTerm2:

1. fish_key_reader & pressing Alt backspace

Press a key:
bind \e\x7F 'do something'

2. bind \e\x7F backward-kill-word

Answer 1

Running the same commands in WebStorm's integrated terminal solved my problem.

In WebStorm's integrated terminal: (put this in ~/.config/fish/config.fish to keep the setting after restart and do not only run the command in a terminal!)

1. fish_key_reader & pressing Alt backspace

Press a key:
bind \e\x7F 'do something'

2. bind \e\x7F backward-kill-word