无法使用Cordova Background fetch插件执行ajax请求

Question

我无法使用Cordova Background fetch插件获取执行ajax请求，

后台获取插件： https://github.com/christocracy/cordova-plugin-background-fetch

角天青移动服务： https://github.com/TerryMooreII/angular-azure-mobile-service

我的代码：

ionic.Platform.ready(function () {

            //iOS Background Fetch
            if (ionic.Platform.isIOS()) {

                var Fetcher = window.BackgroundFetch;

                // Your background-fetch handler.
                var fetchCallback = function () {

                    Azureservice.invokeApi('myAPI', {
                        method: 'post',
                        body: {
                            createdby: $scope.userid
                        }
                    })
                    .then(function (count) {

                        cordova.plugins.notification.badge.set(count);

                        Fetcher.finish();

                    }, function (err) {

                    });

                }
                var failureCallback = function () {
                    console.log('- BackgroundFetch failed');
                };
                Fetcher.configure(fetchCallback, failureCallback, {
                    stopOnTerminate: false  // <-- false is default
                });
            }


});

我该怎么办才能让它发挥作用？