errorMessage = data.message;
                }
            } catch (ex) {}

            handleError(thinkingId, messageElement, errorMessage);
            eventSource.close();
        });

        eventSource.onerror = function() {
            if (!state.errorHandled) {
                handleError(thinkingId, messageElement, config.labels.error);
            }
            eventSource.close();
        };

				defer unLocker()
			}
			gatherers = append(gatherers, gatherer)
		}
	}

	if len(gatherers) == 0 {
		return notFoundHandler
	}

	return promhttp.HandlerFor(prometheus.Gatherers(gatherers), h.opts)
}

// ServeHTTP - implements http.Handler interface.
//
// When the `list` query parameter is provided (its value is ignored), the