Nginx 默认错误页面仍然显示

Question

我通过这些行向 Nginx 添加了自定义错误页面：

error_page 400 /custom.html;
location = /custom.html {
  root /somewhere/html;
  internal;
}

location /test {
  return 400;
}

它 returns 我的测试位置自定义错误页面；问题是对于某些请求，例如当请求 header 太大时，它仍然 returns Nginx 的默认错误页面。

<html>
  <head><title>400 Request Header Or Cookie Too Large</title></head>
  <body>
  <center><h1>400 Bad Request</h1></center>
  <center>Request Header Or Cookie Too Large</center>
  <hr><center>nginx</center>
  </body>
</html>

Answer 1

显然这个特定错误在内部使用 code 494。

你可以试试

error_page 494 =400 /custom.html

我在 nginx 邮件列表上发现：

Try handling 494 errors instead. It's a custom code used to report "Request Header Too Large" errors, translated to 400 just before returning to client. It was introduced in nginx 0.9.4 to make it possible to define a custom error page for these particular errors separately from generic 400 errors.

https://mailman.nginx.org/pipermail/nginx/2018-June/056342.html

Nginx 默认错误页面仍然显示

Nginx default error page is still showing

nginx

custom-error-pages

nginx-config