code: HttpRequestConfig getRedirectRequestConfig() {
          if (redirectRequestConfig == null) {
              redirectRequestConfig = HttpRequestConfig.builder().setRedirectionValidator(getRedirectionValidator()).build();
          }
          return redirectRequestConfig;
      }
docs: Gets the HTTP request configuration that ensures the followed redirections are in scan's scope.
  
  @return the HTTP request configuration, never {@code null}.
  @since TODO add version
  @see #getRedirectionValidator()