问如何对Google Maps API进行跨域AJAX调用？

EN

<script src="http://maps.google.com/maps/api/js?sensor=false"></script>

<script type="text/javascript">     
   var geocoder = new google.maps.Geocoder();
   var address = 'London, UK';

   if (geocoder) {
      geocoder.geocode({ 'address': address }, function (results, status) {
         if (status == google.maps.GeocoderStatus.OK) {
            console.log(results[0].geometry.location);
         }
         else {
            console.log("Geocoding failed: " + status);
         }
      });
   }    
</script>

ProxyPass     /geocode/     http://maps.google.com/maps/api/geocode/