I've read many similar closed issues, but haven't found a good documented solution on what can I do as a consumer of ky package if I need to support e.g iOS 10.0 browser (that breaks on async/await support currently).

I agree that it's not related to ky itself, but can be a nice help for the consumers of the package.

In our particular can we don't use babel (we use typescript), so I'm

Hi,

we have a pretty large eCommerce website and unfortunately, we have some error messages/key from external APIs we don't know and they can even change.
Is there a way we can log these missing keys in production so that our translation Team can find them more easily?

When we could inject an function via i18n.js like this it would be unbelievable great :) :

missingKeyHandler: (key: