We are having an issue with the Delete command firing in Chrome when using a Command Text. I was able to duplicate this on your demo site.
1) Go to the following link: http://demos.telerik.com/aspnet-ajax/grid/examples/data-editing/manual-crud-operations/defaultcs.aspx
2) Delete a record in IE. You will see it works fine. The record disappears as expected.
3) Then do the same using Chrome. The command text pops up as expected, but if you click OK nothing is deleted.
I can duplicate this at will and have uploaded a video demonstrating the issue: https://youtu.be/_-KmZWCE8x8