"?" can't be assigned?

I have the following keymap:

    keymap() {
      return {
        '?': this.showHotKeyHelp,
        '/': this.goToSearch
      }
    }

The / is working fine. However ? does not do anything.

[Dafrok]

Finally I catch the problem, the hotkeys triggers by a specified keycode instead of a character. The keydown & keyup event pass me not only an ASCII code as event.keyCode representing the original character without holding shift key, but also current charactor as event.key. You needs to trigger the hotkey by a charactor, not an ASCII code, but matching both event.keyCode and event.key may cause some conflicts. I think it needs two matching modes probably, but I haven’t thought of how to design this feature yet. Do you have any ideas?

[Dafrok]

Browsers doesn’t have any abilities to detect keyboard layout, and no one can promise there’s no conflicts between different layouts, so I consider adding an option to allow users to set their custom keycode map alias, how do you like it?