Prerequisites

• I am running the latest version
• I checked the documentation and found no answer
• I checked to make sure that this issue has not already been filed

💥 Demo Page

https://jsbin.com/rugeqoleri/1/edit?html,js,output

Explanation

Open in Safari
1.Type any text
2.Press Enter key - cursor moves to the next line
3.Press Enter key one more time or even more times - nothing happens

• What is the expected behavior?
  Empty lines added to a text
• What is happening instead?
  Nothing happens, cursor stays at the same position
• What error message are you getting?
  No errors

I think issue related with this part of code

when I remove underlined string error gone