Déboguer un Google Apps Script

Faire fonctionner correctement de Java Apps Script
// Send Message to the Winner
if (winnerTexto == "YES")
{
var url2 = "http://smsgateway.ca/SendSMS.aspx?CellNumber=" + winnerPhone + "&AccountKey=" + swiftKey + "&MessageBody=" + message;
var options = { 'muteHttpExceptions' : true };
var response = UrlFetchApp.fetch(url2, options).getContentText();
Logger.log(response);
}