nginx 0.3.28 *) Feature: the "restrict_host_names" directive was canceled. *) Feature: the --with-cpu-opt=ppc64 configuration parameter. *) Bugfix: on some condition the proxied connection with a client was terminated prematurely. Thanks to Vladimir Shutoff. *) Bugfix: the "X-Accel-Limit-Rate" header line was not taken into account if the request was redirected using the "X-Accel-Redirect" header line. *) Bugfix: the "post_action" directive ran only after a successful completion of a request. *) Bugfix: the proxied response body generated by the "post_action" directive was transferred to a client.

--- a/src/http/ngx_http_upstream.c
+++ b/src/http/ngx_http_upstream.c
@@ -1209,7 +1209,10 @@ ngx_http_upstream_send_response(ngx_http
 
     rc = ngx_http_send_header(r);
 
-    if (rc == NGX_ERROR || rc > NGX_OK) {
+    if (rc == NGX_ERROR
+        || rc > NGX_OK
+                          /* post_action */
+        || (r->http_version == NGX_HTTP_VERSION_9 && r->header_only)) {
         ngx_http_upstream_finalize_request(r, u, rc);
         return;
     }