docs: public static String getHistoryResourceURI(String uri, ServletRequest req) {
  
          String histUri = uri;
          if (CmsHistoryResourceHandler.isHistoryRequest(req)) {
              String version = req.getParameter(CmsHistoryResourceHandler.PARAM_VERSION);
              histUri = CmsRequestUtil.appendParameter(uri, CmsHistoryResourceHandler.PARAM_VERSION, version);
          }
          return histUri;
      }