Browser is going to unresponsive when user continue press (Shift + " ) key

[Prabhat Kumar]

Hi , I am facing a problem that if user press continuously the ( Shift + " ) in a csv token, browser becomes unresponsive.

Attaching my poc files also 

The url of live problem is at : http://indirapuramvaishali.com/ba-poc/csveditor-impl/

[Prabhat Kumar]

I got the solution :  my mode-csv.js file was not updated.