docs: function loadFromIndividualConfigFile(key) {
      key = _.replace(key, /\/|\\/g, ''); //forward and backslashes are unsafe when resolving filenames
  
      if (individualKeyCache[key]) {
          return individualKeyCache[key];
      } else {
          var toLoad = path.resolve(global.__appDir, 'config/' + key + '.json');
  
          var content = '{}';
          try {
              content = fs.readFileSync(toLoad);
          } catch (err) {
              //file must not exists
          }
  
          var json = {};
          try {
              json = JSON.parse(stripJsonComments(content.toString()));
          } catch (err) {
              console.warn('Error parsing JSON for %s', toLoad);
          }
  
          security.decryptObject(json, function (str) {
              //Decryption function
              return security.decrypt(str, process.env.decryptionKey);
          });
          individualKeyCache[key] = json;
  
          return individualKeyCache[key];
      }
  }