can not binding <M-n> key in mac os.

[hackrole]

I have config like this in nvim.rc

nnoremap <M-n> :tabprevious<CR>
nnoremap <M-m> :tabnext<CR>

the keybind works fine in terminal nvim. but on nyaovim the not works, it seems do nothing at all.

Expected Behavior

should work on both the terminal and gui nvim.

Actual Behavior

but it not work on nyaovim, I have tried the disable-meta-key options, it does not make me out.

Your Environment

• OS: Mac OS X 10.11.6
• NyaoVim version: 0.0.22
• nvim version: NVIM v0.2.0 (installed from brew)
• Keyboard layout: default
• Linux: Window manager: None