title: AdWords PLACEMENT_PERFORMANCE_REPORT not pulling URLs
body: <p>This should be extremely simple but for some reason it doesn't seem to work. I'm trying to pull the URLs of display placements using the DISPLAY_PERFORMANCE_REPORT but instead of URLs it's just returning "--". </p>
  
  <p>The code I'm using is:</p>
  
  <pre><code>  var report = AdWordsApp.report(
      "SELECT CampaignName, Clicks, FinalAppUrls, FinalUrls " +
      "FROM   PLACEMENT_PERFORMANCE_REPORT " +
      "WHERE  Clicks &gt; 0 " +   
      "DURING LAST_30_DAYS");
  
    var rows = report.rows();
  
    while (rows.hasNext()) {
      var row = rows.next();
  
      var url = row["FinalUrls"];
      Logger.log(url);
  
    }
  </code></pre>
  
  <p>I've tried logging the CampaignName and clicks and they're working as expected, so can't understand what the issue is here. The only thing I can think of is that in the reference guide it says:</p>
  
  <blockquote>
    <p>List of final URLs of the main object of this row. UrlList elements
    are returned in JSON list format</p>
  </blockquote>
  
  <p>I'm not entirely sure what JSON list format is, but when I log the typeof url it says it's a string, so thought it shouldn't be an issue. </p>