docs: function getNotLoadPackedFiles(page, packedFiles, loadPackeFiles) {
      var existedMap = {};
      loadPackeFiles.forEach(function(item) {
          existedMap[item.id] = true;
      });
  
      var notExisteds = [];
      packedFiles.forEach(function(item) {
          var pkg = item.pkg;
          var host = item.host;
          if (!existedMap[pkg.id] && (host === page || host == null)) {
              notExisteds.push(pkg);
          }
      });
  
      return notExisteds;
  }