I have the following mappings:

```
nnoremap <C-,> :tabe ~/.config/nvim/init.vim<cr>
nnoremap <C-/> gcc
```

Neither of these mappings is working - they both do nothing. I have a plugin called vim-tmux-navigator that defines mappings `<C-h/j/k/l>` to navigate [neo]vim splits and tmux panes, and those mappings work. But no Ctrl mappings that I put in my init.vim work. This is true both inside and outside of tmux. I am using wsl on windows 10, but the mappings also don't work in the regular windows console or conemu, so it's not a wsl or tmux issue.

Update:

I just tested it again and other Ctrl + [letter] mappings, such as `<C-h>` or `<C-b>` *do* work, just not `<C-/>` or `<C-,>`. Not sure what the deal is.