Customizing header, to hide confirm button

I have been trying to hide the buttons from the header, and the confirm button is still showing, here is my json

ceremony: {
            {...}
            layout: {
              header: {
                sessionBar: false,
                globalNavigation: false,
                breadcrumbs: false,
                confirm: false,
                globalActions: {
                  download: false,
                  confirm: true,
                  saveAsLayout: false,
                  hideEvidenceSummary: true
                },
                titleBar: {
                  title: false,
                  progressBar: true
                }
              },
              iframe: true
             },
            events: {
              complete: {
                redirect: nil,
                dialog: true
              }
            },
            inPerson: false,
            hideLanguageDropdown: true,
            declineButton: false,
            declineReasons: [],
            optOutButton: false,
            optOutReasons: [],
            maxAuthFailsAllowed: 3
            }           
          },