I’m suffering some troubles about developing web IME application.

As far I can check, some features and APIs for web app do not work for web IME application.

1. Listener for some types of hardware event such as rotary event(Blocking of back key on web IME seems to be definitely reasonable, but I can not understand why rotary event is also unavailable.)

2. Message Port APIs.(Someone mentioned about it on https://developer.tizen.org/forums/web-application-development/wearable-can-web-ime-communicate-native-service-app, but this answer seems to be wrong 🙁 It didn’t work)

I don’t think that it is the list of all unavailble features, so I want to make my development scope clear.

What can I do, or can’t with web APIs in web IME app? Is there any documentation which describes the specification and limitation of web IME APIs?

Thanks regards.