报错
解决方案：
nginx里添加下面的代码
关键配置 start
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
关键配置 end
location /n8n-api/ {
设置允许跨域的域，* 表示允许任何域，也可以设置特定的域
add_header 'Access-Control-Allow-Origin' '*';
允许的方法
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
允许的头信息字段
add_header 'Access-Control-Allow-Headers' 'User-Agent,Keep-Alive,Content-Type';
缓存时间
add_header 'Access-Control-Max-Age' 1728000;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header REMOTE-HOST $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-NginX-Proxy true;
proxy_set_header Connection '';
proxy_http_version 1.1;
chunked_transfer_encoding off;
proxy_buffering off;
proxy_cache off;
proxy_pass http://localhost:5678/;
关键配置 start
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
关键配置 end
}
成功：
参考链接