NGINX 反代 ws 总是失败，麻烦大佬帮忙看下配置

想用线路优化机反代大内存机，都是些自己 Docker 的小工具，emby 、miniflux 、哪吒面板之类的。

都是使用的 Nginx Proxy Manager ，原网站一切正常，用了 SSL ，反代 HTTPS 。

最后在 websockets 这里卡住了，websocket support 打开了，所有的同步加载的东西全都无法连接，哪吒面板“实时同步通断断开”，lobehub 接收完了之后再一起回复，而不是一个字一个字的往外蹦。

问 chatgpt4 说我配置正常的，GOOGLE 也查不到解决方案，麻烦大佬帮我看下配置是不是有问题。

#PROXY-START/
client_max_body_size 100M;
    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;
    proxy_set_header Sec-WebSocket-Extensions $http_sec_websocket_extensions;
    proxy_set_header Sec-WebSocket-Key $http_sec_websocket_key;
    proxy_set_header Sec-WebSocket-Version $http_sec_websocket_version;
    proxy_cache off;
    proxy_redirect off;
    proxy_buffering off;

location / {
        proxy_ssl_server_name on;
        proxy_ssl_name example.com;
        proxy_ssl_protocols TLSv1.2 TLSv1.3;
        proxy_pass https://example.com/;
        proxy_set_header X-Forwarded-For $remote_addr;
        proxy_set_header Host example.com;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }

location ~* \.(gif|png|jpg|css|js|woff|woff2)$
{
        proxy_ssl_server_name on;
        proxy_ssl_name example.com;
        proxy_ssl_protocols TLSv1.2 TLSv1.3;
	proxy_pass https://example.com;
    proxy_set_header Host example.com;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
    expires 1h;#图片缓存浏览器过期时间
}

location /ws {
    proxy_pass http://example.com;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_set_header Host $host;
    proxy_set_header Origin $scheme://$host;
    proxy_cache_bypass $http_upgrade;
}

#PROXY-END/