code: function (path) {
      if (this._rootPaths[path] !== undefined) {
        return this._rootPaths[path];
      } else if (path === '/') {
        return 'SEEN';
      } else {
        return this.checkPath(containingFolder(path));
      }
    }
docs: Retrieve caching setting for a given path, or its next parent
  with a caching strategy set.
  
  @param {string} path - Path to retrieve setting for
  @returns {string} caching strategy for the path