解决Nginx反向代理后,如何设置自定义错误页面

location / 
{
    proxy_pass https://127.0.0.1:18881;
    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 REMOTE-HOST $remote_addr;
    
    proxy_intercept_errors on;  
    error_page 404 https://x.hak.ink/404;
    error_page 403 https://x.hak.ink/403;
    error_page 502 https://x.hak.ink/502;
    error_page 500 https://x.hak.ink/500;
    error_page 503 https://x.hak.ink/500;
    error_page 504 https://x.hak.ink/500;

    #.....
}