limit-comunas-jumpseller.js

  var shipping_to = ["Ñuñoa","Providencia","Vitacura","Santiago Centro","Las Condes"]; //hides all states not included in this array
  var interval = setInterval(function(){   
    if($('#order_shipping_address_municipality').text()){
      
      $('#order_shipping_address_municipality option:not(:first)').filter(function() {
        return $.inArray($.trim($(this).text()), shipping_to) == -1;
      }).remove();
      
      clearInterval(interval)
    }
  }, 200)

cómo podemos hacer para que la primera opción no pueda quedar en blanco?