diff --git a/packages/ui/src/views/chatmessage/ChatMessage.jsx b/packages/ui/src/views/chatmessage/ChatMessage.jsx
index ebabf12537..df5bb25d4d 100644
--- a/packages/ui/src/views/chatmessage/ChatMessage.jsx
+++ b/packages/ui/src/views/chatmessage/ChatMessage.jsx
@@ -841,6 +841,7 @@ export const ChatMessage = ({ open, chatflowid, isAgentCanvas, isDialog, preview
             async onerror(err) {
                 console.error('EventSource Error: ', err)
                 closeResponse()
+                throw err
             }
         })
     }