I tried to chat with one of my friend in Korean but failed to type.
For typing Korean, some special method is used.
In Korean ‘간’ is a combination of ‘ㄱ, ㅏ, ㄴ’.
While I type each of ‘ㄱ, ㅏ, ㄴ’, they must to be held for the combination.
But cwtch.im’s input box doesn’t.
Letters can be copied from clipboard and can be sent, though.
Because they’re already combined.