Why updateDateInput() nor dateRangeInput() don't have the datesdisabled parameter enabled? about shiny HOT 1 OPEN

uiOutput("date_range_start_output"),
uiOutput("date_range_end_output")

# Within an observe() that overwrites reactiveValues from rv
  dates <- "VECTOR WITH DATES"
  start_date <- as.Date(min(dates, na.rm = TRUE), "%Y-%m-%d")
  end_date <- as.Date(max(dates, na.rm = TRUE), "%Y-%m-%d")
  rv$datesdisabled <- as.Date(start_date:end_date)[!as.Date(start_date:end_date) %in% as.Date(dates)]
  if (length(rv$datesdisabled) == 0) rv$datesdisabled <- NULL
  updateDateInput(session, "date_range_start", value = start_date, min = start_date, max = end_date)
  updateDateInput(session, "date_range_end", value = end_date, min = start_date, max = end_date)

# Update datesdisabled
output$date_range_start_output <- renderUI({
    dateInput("date_range_start", "First date:", width = "100%", datesdisabled = rv$datesdisabled)  
  })
output$date_range_end_output <- renderUI({
    dateInput("date_range_end", "Last date:", width = "100%", datesdisabled = rv$datesdisabled)  
  })