docs: public URLNormalizer encodeSpaces() {
          String path = StringUtils.substringBefore(url, "?");
          path = StringUtils.replace(path, " ", "%20", -1);
          String qs = StringUtils.substringAfter(url, "?");
          if (StringUtils.isNotBlank(qs)) {
              qs = StringUtils.replace(qs, " ", "+", -1);
              url = path + "?" + qs;
          } else {
              url = path;
          }
          return this;
      }