Can't return content with status code other than 200

[gencer]

When I return a status code other than 200, Nginx intercepts the request and show static nginx error file instead of my custom content generated in Ruby.

For example;

nginx.conf:

server {
  location / {
    mruby_content_handler "path/to/test.rb"; # or access_handler
  }
}

test.rb:

class InvalidResponse
  def call(env)
    status = 404 # 404 File not Found.
	hash = { success: false }

    headers = {"Content-Type" => "application/json"}
	body = [hash.to_json]
    [status, headers, body]
  end
end

run InvalidResponse.new

If I give 200 as a status then {success: false} shown on browser.

Isn't ngx_mruby capable of returning custom status codes with content?

P.S.: I also tried Nginx.return and Nginx.status_code. Neither worked.

[yyamano]

If my memory serves me right, it's a limitation (and specification) of nginx, not nginx_mruby.

You might want to use an error_page directive with a named location.
See http://nginx.org/en/docs/http/ngx_http_core_module.html#error_page for more details.