code: function _normalizePath(path, parent, ancestors) {
      if (path === '/') {
          return path;
      }
  
      path = path.replace(/\/$/, '');
  
      // If path begins with / then assume it is independent route
      if (path[0] === '/') {
          return path;
      }
  
      // If no parent, and route doesn't start with /, then prepend /
      if (! parent) {
          return `/${path}`;
      }
  
      if (ancestors) {
          return _cleanPath(`${ancestors.join('/')}/${path}`);
      }
  
      return _cleanPath(`${parent.path}/${path}`);
  }
docs: Find full path of route
  
  @param {string} path
  @param {Object} [parent]
  @returns {*}
  @private