The generating code does not display

The extract_html_content method code is output,
match = re.search(r"(.*?)", text, re.DOTALL)
Status (variant 0): Generating images...
Status (variant 1): Generating images...
Generating images with model: flux
Generating images with model: flux
Status (variant 0): Code generation complete.
Status (variant 1): Code generation complete.
INFO: connection closed

and the front
ws.addEventListener("message", async (event: MessageEvent) => {
const response = JSON.parse(event.data) as WebSocketResponse;
console.info("Received message00000000", response.type);

end is also output, but there is no response on the interface