Method relative2absolute

src/common/mapping/WebMapV2.js:3258–3264

(url, base)

    }

    relative2absolute(url, base) {
      let newUrl = new URL(url, base);
      if (newUrl && newUrl.href) {
        return decodeURIComponent(newUrl.href);
      }
      return null;
    }
  };
}