Virtual Keyboard event.key=Unidentified

I am trying to capture the onKeyDown event and use the key the user pressed, but when using chrome on android the key is Unidentified. Looks like the keyCode is coming through though. How can I convert the keyCode into a string?

the event.keyCode looks to always be 229 no matter what button i press on the virtual keyboard. The question becomes how do you determine what the user presses when they use the virtual keyboard?