code: function crawlScript($,result, script, callback) {
  
      var link = $(script).attr('src');
      var parentUrl = result.url;
  
      if (link) {
            var linkUri = URI.linkToURI(parentUrl, link);
            pm.crawlLink(parentUrl, linkUri, null, null, function(){
              addLinkToQueue(result, parentUrl, linkUri, null, null, callback);
            });
      }
      else {
        callback();
      }
  
  
  }
docs: Extract info of script tag & send the info to the plugins
  
  
  @param The HTML body containing the script tag (Cheerio wraper)
  @param The http response with the crawl options
  @param The script tag
  @param callback()