});

        eventSource.addEventListener('sources', function(e) {
            var data = JSON.parse(e.data);
            if (data.sources && data.sources.length > 0 && messageElement) {
                addSourcesToMessage(messageElement, data.sources);
            }
        });

        eventSource.addEventListener('done', function(e) {
            var data = JSON.parse(e.data);
            state.sessionId = data.sessionId;