relative(what) {
    var isAbsolute = what && what.indexOf("://") > -1;

    if (isAbsolute) {
      return what;
    }

    return path_webpack__WEBPACK_IMPORTED_MODULE_2___default.a.relative(this.directory, what);
  }
Resolve a path relative to the directory of the Path

https://nodejs.org/api/path.html#path_path_relative_from_to
@param	{string} what
@returns {string} relative