eventSource.close();
        });

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

        state.eventSource = eventSource;
    }

    /**
     * Handle error state
     */

    backwards-incompatible changes in forthcoming releases.
 *  Fix: Don't crash loading the public suffix database resource in obfuscated builds.
 *  Fix: Don't silently ignore calls to `EventSource.cancel()` made from
    `EventSourceListener.onOpen()`.
 *  Fix: Enforce the max intermediates constraint when using pinned certificates with Conscrypt.