an error handling in troopjs

log

define(['jquery',
    'troopjs-core/component/service',
    'config'], function RouteService($, Service, config) {
    'use strict';

    var URL = '/rest/data/errorlog';

    function log(msg, stack) {
        if (!config.debug) {
            var data = {
                context: {
                    url: window.location.href
                },
                message: msg,
                exc_text: stack || ''
            };

            $.ajax({
                url: URL,
                data: {
                    data: JSON.stringify(data)
                },
                type: 'post'
            });
        }
    }

    return Service.extend({
        'sig/initialize': function (signal, deferred) {
            window.onerror = function (msg, url, line) {
                log(msg);
                return true;
            };
            deferred.resolve();
        },
        'hub:memory/error/log': function (topic, url, msg, stack) {
            log(msg, stack);
        }
    });
});