js通过iframe下载附件

js通过iframe下载附件

js：

   $('<iframe/>', {
        src: url,
        width: 0,
        height:0
    }).appendTo('#download');

后台php：

header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename=xxx.doc');
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
header('Content-Length: ' . filesize($filepath));
ob_clean();
flush();
readfile($filepath);<span style="white-space:pre"></span>