Error when emptying edit

WEB TMS WEB Core
1

In mobile chrome (android phone/table) 

i get error bellow when I use back space in tWebEdit. This also occurs in TWebStringGrid
I'm using webcore 1.4.1 with delphi 10.3.1. Works ok in PC chrome
Chrome version in mobile 83.0.4103.106, tablet: Androd 9 

ERROR
Uncaught TypeError: Cannot read property 'charAt' of null | TypeError: Cannot read property 'charAt' of null at Object.HandleDoInput (http://desktop-3blbkd1/e/e.js:24061:21) at HTMLInputElement.cb (http://desktop-3blbkd1/e/e.js:222:26)

This was just simple PWA application where I only placed one TWebEdit, nothing else.
2

demo effect can be found in https://tiedosto.skj.fi/edit/e.html

error only occurs in mobile, not on pc. 
Just click there and start to remove WebEdit1 text with backspace.
3

Looks like that key is mobile browser. If i check "Desktop site" from mobile chrome, error is gone.

And If I change my Pc chrome to mobile mode, error occurs also in PC.
4

Thanks. 
This appeared to be an Android mobile browser specific issue.
We could address this. The next update will address this.