如出现以下问题

You have a connection issue or the server is down. n8n should reconnect automatically once the issue is resolved.

目测是最新版本1.119.1的bug
websocket链接有问题。。。
换成sse协议
docker文件这样配置：

 environment:
      N8N_SECURE_COOKIE: false
      N8N_PROTOCOL: https
      WEBHOOK_URL: https://${N8N_HOST}
      N8N_PROXY_HOPS: "1"
      N8N_RUNNERS_ENABLED: true
      N8N_PUSH_BACKEND: sse

nginx这样配置：

  #SSL-END
  # ======================
    # n8n 反代主配置
    # ======================
    location / {
        proxy_pass http://127.0.0.1:5678;
        proxy_http_version 1.1;

        # 必须：Host + Forwarded headers
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

        # SSE 推送配置（长连接）

        proxy_set_header Origin https://你的域名.com;

        proxy_buffering off;
        proxy_cache off;
        proxy_read_timeout 3600;
    }