Cakephp2.3.0，CsvHelper不会在线生成下载弹出窗口，而是在localhost中工作 - Cakephp 2.3.0, CsvHelper is not generating download pop-up in online but works in localhost

Cakephp 2.3.0, CsvHelper is not generating download pop-up in online but works in localhost

我使用Cakephp 2.3.0，CsvHelper类下载.csv excel文件。我按照下面的链接实现了它-cakehp-excl/csv导出组件

在localhost中一切都很好，但当我尝试在线时，我不会弹出下载窗口，而是在浏览器中获得输出。谁能帮我弄清楚这个吗。

我用这样的方式和他们的视图，我放了一个链接下载csv

function export(){
$results=array();//containing result data
$excludePaths = array(); // Exclude all id fields
$_extract = $this->CsvView->prepareExtractFromFindResults($results, $excludePaths);
$_header = $this->CsvView->prepareHeaderFromExtract($_extract, $customHeaders);
$_serialize = 'results';
$this->response->download($filename);
        $this->viewClass = 'CsvView.Csv';
        $this->set(compact('results', '_serialize', '_header', '_extract'));
}