tengine https模式上传图片502错误，http下面正常
requert headers

:method:POST
:path:/web/index.php?c=utility&a=file&do=upload&upload_type=image&global=&dest_dir=&uniacid=-1&quality=0&group_id=-1
:scheme:https

requert payload
------WebKitFormBoundaryFkfopzQBw5BR7YBf
Content-Disposition: form-data; name="file"; filename="16pic_785034_b.jpg"
Content-Type: image/jpeg

------WebKitFormBoundaryFkfopzQBw5BR7YBf--