Nginx上的自定义500错误页面不起作用

Question

我想在nginx中添加自己的错误页面。在服务器配置中，我有：

error_page 404 /errors/404/index.php;
error_page 500 502 503 504 /errors/500/index.php;

location /errors/ {
    root /var/www/<host>/public_html/;
    internal;
    
    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
        fastcgi_split_path_info ^(.+/\.php)(/.+)$;
        fastcgi_param PATH_INFO $fastcgi_path_info;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_intercept_errors on;
    }
}

location / {
    try_files $uri $uri/ =404;
}

location ~ \.php$ {
    include snippets/fastcgi-php.conf;
    fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
    fastcgi_split_path_info ^(.+/\.php)(/.+)$;
    fastcgi_param PATH_INFO $fastcgi_path_info;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    fastcgi_intercept_errors on;
}

，并正确显示404错误。虽然我故意在php文件中犯了一个错误，以使服务器上出现500错误，但错误继续：https://i.imgur.com/rasHQ8r.png

有人知道为什么不显示给定页面吗？ Nginx日志中没有错误。谢谢。