From 8488a1ce11486d84e3d8c54af19280bd37f7bc5d Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Mon, 15 Jan 2007 17:12:43 +0000
Subject: [PATCH] allow the upstream modules to send a header only

---
 src/http/ngx_http_upstream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/http/ngx_http_upstream.c b/src/http/ngx_http_upstream.c
index 00fa4575e..f9d2482ea 100644
--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -1356,7 +1356,7 @@ ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
 
     rc = ngx_http_send_header(r);
 
-    if (rc == NGX_ERROR || rc > NGX_OK || r->post_action) {
+    if (rc == NGX_ERROR || rc > NGX_OK || r->post_action || r->header_only) {
         ngx_http_upstream_finalize_request(r, u, rc);
         return;
     }