ERROR - Parse e rror. Internet Explorer has a non-standard intepretation of trailing commas

ERROR in can/../../projects/myproject/helpers/helpers.js at line 92: ERROR - Parse e
rror. Internet Explorer has a non-standard intepretation of trailing commas. Arr
ays will have the wrong length and objects will not parse at all.

                 },
                 "filterDate":function(param, text, columnData){
                        if(param.value==text){
                                return true;

I know the IE issue with trailing commas, but I getting errors thre at all no arrays or objects.
But It tooked me a lot of time to find out that the issue was in another file, in one of steal dependencies