Check box is displaying rectangular box when checked in Webix 1.8

Webix JS
1

Hi team…
I am facing issue with check box when using webix 1.8.
When the box is checked , it is showing rectangular box in place of tick mark.
Here is code I am using: http://webix.com/snippet/29094529
Please check what am I missing.

2

The above link actually works for me
Check that codebase/fonts in place - checkbox is taken from icon font, so if font moved or misplaced it may cause the above described issue.

3

Thanks Maksim…

I resolved it.