I'm using KCFinder to upload images of my text field and i need save this images in another server. The directory where it is saved id automatcaly generated by de server where de img will be uploaded, but when i try to upload de img, i receive the "unknow error" error. My upload config is:
'uploadURL' => "http://server_ip/api_cms/uploads/kcfinder_".$_COOKIE['hash_UPLOADO2'],
'uploadDir' => "upload",