code: protected ClientCookie convertCookie(Cookie browserCookie) {
          BasicClientCookie cookie = new BasicClientCookie(browserCookie.getName(), browserCookie.getValue());
          String domain = browserCookie.getDomain();
          if (domain != null && domain.startsWith(".")) {
              // http client does not like domains starting with '.', it always removes it when it receives them
              domain = domain.substring(1);
          }
          cookie.setDomain(domain);
          cookie.setPath(browserCookie.getPath());
          cookie.setExpiryDate(browserCookie.getExpiry());
          cookie.setSecure(browserCookie.isSecure());
          if (browserCookie.isHttpOnly()) {
              cookie.setAttribute("httponly", "");
          }
          return cookie;
      }
docs: Converts Selenium cookie to Apache http client.
  @param browserCookie selenium cookie.
  @return http client format.