Response with error code

Hi, all.

I need a help in the following question.
I send a request to the nginx server and I need to support only 1.1
version of the http protocol. If version is differ from “1.1”, the error
code should be sent in the response.
For this purpose I set “err_status” parameter of the ngx_http_request_t
to error code and then call
ngx_http_discard_request_body(ngx_http_request_t *r);
After that I call ngx_http_send_header(ngx_http_request_t *r) and
ngx_http_output_filter(ngx_http_request_t *r, ngx_chain_t *chain);
(where chain is NULL). But in this case client receives 0 bytes in the
response.

Could you help me to find a problem?

NOTE: If version is set to “1.1” in the request, the response is
successfully sent and has OK status

Posted at Nginx Forum:
http://forum.nginx.org/read.php?2,217395,217395#msg-217395

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