code: protected URI determineUnauthorizedServiceRedirectUrl(final RequestContext context) {
          val redirectUrl = WebUtils.getUnauthorizedRedirectUrlFromFlowScope(context);
          val currentEvent = context.getCurrentEvent();
          val eventAttributes = currentEvent.getAttributes();
          LOGGER.debug("Finalizing the unauthorized redirect URL [{}] when processing event [{}] with attributes [{}]",
              redirectUrl, currentEvent.getId(), eventAttributes);
          return redirectUrl;
      }
docs: Determine unauthorized service redirect url.
  
  @param context the context
  @return the uri