array(3) {
  [0]=>
  string(24) "X-Powered-By: PHP/7.4.33"
  [1]=>
  string(92) "Location: /conference-event-services/docs/resources/drivingdirections.pdf"
  [2]=>
  string(43) "Cache-Control: max-age=600, must-revalidate"
}