Example URL:
http://lubble.herokuapp.com

Steps to reproduce the problem:
1. visit http://lubble.herokuapp.com
2. login with username and password as username and password respectively
3. attempt to append text to the textarea

What is the expected behavior?
user should be able to append text inside the textarea

What went wrong?
on android versions <7.0 and chrome version > 52.x.x.x* user cannot append text inside the textarea. However, once the user clicks on the url bar (or anything that puts an overlay, be it even switch apps and back) and clicks back on the page the user can append text inside the textarea

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? Yes 52.x.x.x

Does this work in other browsers? Yes

Chrome version: >52.x.x.x  Channel: n/a
OS Version: <7.0
Flash Version: 

52.x.x.x was the last tested working version before the chrome was updated 59.0.3071.125. 
Issue is there even on Chrome Beta 60.0.3112.66
Works on android 7.0 irrespective of the chrome version.