docs: public static InstanceExchangeFilterFunction logfileAcceptWorkaround() {
          return (instance, request, next) -> {
              if (request.attribute(ATTRIBUTE_ENDPOINT).map(Endpoint.LOGFILE::equals).orElse(false)) {
                  List<MediaType> newAcceptHeaders = Stream.concat(request.headers().getAccept().stream(),
                      Stream.of(MediaType.ALL)
                  ).collect(Collectors.toList());
                  request = ClientRequest.from(request).headers(h -> h.setAccept(newAcceptHeaders)).build();
              }
              return next.exchange(request);
          };
      }