#630 Vietnamese input doesn't work when <input /> is focused by alphabetic key

[Anonymous]

The bug is only in Windows, MacOS is normal.
When <input> is focused by alphabetic key, Vietnamese input doesn't work.
But if <input> is focused by other key like / . ;, Vietnamese input is normal.
Here is the code snippet that could reproduce the bug.
https://jsfiddle.net/c2ahsw6f/