fetch: function(successCallback, errorCallback) {
        var apiUrl = this.applyFilter(filters);
        var self = this;

        this.log('fetch', apiUrl, currentSearchMode);

        $.ajax({
            url: apiUrl,
            type: 'GET',
            cache: (debug) ? true: false,
            processData: true,
            crossDomain: true,
            scriptCharset: 'UTF-8',
            jsonp: 'callback',
            dataType: 'jsonp',
            success: function(data, statusText, jqXHR) {
                console.log(jqXHR);
                // if(jqXHR.status == 400){
                //     console.log('there is an error');
                // }
                self.log('fetch::success', data);
                if (typeof data.error !== 'undefined') {
                    showNoResultError = true;
                    var appData = lastValidResult[currentSearchMode];
                } else {
                    showNoResultError = false;
                    var appData = self.normalize[currentSearchMode](self, data);
                    lastValidResult[currentSearchMode] = appData;
                }
                if (typeof successCallback === 'function')
                    successCallback(appData);
            },
            error: function(jqXHR, textStatus, errorThrown) {
                //do sth here

                // if(jqXHR.status&&jqXHR.status==400){
                //     alert(jqXHR.responseText);
                // }else{
                //     alert("Something went wrong");
                // }
                // console.log('works now');
                // self.log('fetch::error', textStatus, errorThrown);
                // if (typeof errorCallback === 'function')
                //     errorCallback.apply(this, arguments);
            },
            complete: function(jqXHR, textStatus) {
                console.log(jqXHR);
                console.log('complete');
            }
        });
    },