htmlspecialchars in combo

Hi!
when sending JSON from the server within a string value can not use double quotes. I use & quot; for replacement and store in DB. In datateble works well, but is displayed & quot; in the certain elements;

http://webix.com/snippet/12656ba8

How do I change this behavior?
Thank you.

The problem is solved using addslasches() on server side
Thank you