write command doesn't work when mapped

In my init.vim I have

nnoremap <Space> <Nop>
let mapleader="\<Space>"
nnoremap <leader>w :w<CR>

and in VSCode, everything else works great, but when I press space, nothing happens. Same with space w.

Do I need to do something special for the leader? Is there a way to debug and see what is going wrong?

[theol0403]

I don’t think there is a way to override neovim’s save file command, this plugin just has a mechanism to automatically correct :w to :Write. When you use <Cmd> you bypass that correction, thus calling neovim’s save command - not the VSCode save command that normally :w gets corrected to.

[Shatur]

This command is only replaced inside the VSCode cmdline if I understand correctly. In mappings you should use alternate commands like :Write.