Can’t input any word on google docs when using Chinese and Japanese IME

We can’t input any word on google docs when using Chinese and Japanese IME, Probably there are other languages.

Run Qt simple browser examples, then open google docs fox examples ( https://docs.google.com/document/d/1D2YoMcbhp4z2uWG9sJAysgpMmXyQYzpdZ56l8KXvYZk/edit?usp=sharing ) and try to input some word under Chinese and Japanese IME or other languages IME. And the position of IME was wrong.