icingaweb2/public/js/helpers.js

(function (Object) {

    'use strict';

    Object.keys = Object.keys || function(o) { 
        var result = []; 
        for(var name in o) { 
            if (o.hasOwnProperty(name)) {
                result.push(name);
            }
        } 

        return result; 
    };

})(Object);