2c2
< index 7ce65bb..218e260 100644
---
> index 3ca855e..4a384c1 100644
11,13c11,13
< +    $server_software = Drupal::request()->server->get('SERVER_SOFTWARE');
< +    $apache = strpos($server_software, 'Apache') !== FALSE;
< +    $fastcgi = strpos($server_software, 'mod_fastcgi') !== FALSE || strpos($server_software, 'mod_fcgi') !== FALSE;
---
> +    $software = Drupal::request()->server->get('SERVER_SOFTWARE');
> +    $apache = strpos($software, 'Apache') !== FALSE;
> +    $fastcgi = strpos($software, 'mod_fastcgi') !== FALSE || strpos($software, 'mod_fcgi') !== FALSE;
18c18
< index 65b15e5..87969b9 100644
---
> index 18dae26..e0286ca 100644
21c21,22
< @@ -737,7 +737,8 @@ function file_ajax_upload() {
---
> @@ -738,8 +738,8 @@ function file_cron() {
>  function file_ajax_upload() {
24c25
<  
---
> -
26,27c27,28
< +  $request = \Drupal::request();
< +  if (!$request->request->has('form_build_id') || $form_build_id != $request->request->get('form_build_id')) {
---
> +  $request = Drupal::request()->request->get('form_build_id');
> +  if (empty($request) || $form_build_id != $request) {
30a32,52
> @@ -1178,7 +1178,8 @@ function file_managed_file_submit($form, &$form_state) {
>   */
>  function file_managed_file_save_upload($element) {
>    $upload_name = implode('_', $element['#parents']);
> -  if (empty($_FILES['files']['name'][$upload_name])) {
> +  $files = Drupal::request()->files->all();
> +  if (empty($files['files']['name'][$upload_name])) {
>      return FALSE;
>    }
>  
> @@ -1190,8 +1191,8 @@ function file_managed_file_save_upload($element) {
>    }
>  
>    // Save attached files to the database.
> -  $files_uploaded = $element['#multiple'] && count(array_filter($_FILES['files']['name'][$upload_name])) > 0;
> -  $files_uploaded |= !$element['#multiple'] && !empty($_FILES['files']['name'][$upload_name]);
> +  $files_uploaded = $element['#multiple'] && count(array_filter($files['files']['name'][$upload_name])) > 0;
> +  $files_uploaded |= !$element['#multiple'] && !empty($files['files']['name'][$upload_name]);
>    if ($files_uploaded) {
>      if (!$files = file_save_upload($upload_name, $element['#upload_validators'], $destination)) {
>        watchdog('file', 'The file upload failed. %upload', array('%upload' => $upload_name));