Pixeldust Drupal Support Service

Remove an uploaded file

I am working with files in a Drupal module. I added this form:

$form['Background_image'] = [   '#type'               => 'managed_file',   '#title'              => t('Image'),   '#progress_message'   => t('Please wait...'),   '#progress_indicator' => 'bar',   '#description'        => t('Click "Browse..." to select an image to upload.'),   '#required'           => TRUE,   '#upload_validators'  => ['file_validate_extensions' => ['jpeg jpg png gif']],   '#upload_location'    => 'public://backgroundimage/',   '#default_value'      => $this->options['Background_image'], ];

The file is added properly. Once the file is uploaded a remove button appears allowing to remove the file and upload a new one. The problem is that this button is not working. How can I remove an uploaded file?

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