# HG changeset patch
# User Valentin Bartenev <vbart@nginx.com>
# Date 1466099711 -10800
# Node ID 12b1df4c99445a60c7bf0b214af5f196497eb97e
# Parent  20485a482bc016f4968844b3346d5e9345f263f4
HTTP/2: avoid adding Content-Length for requests without body.

There is no reason to add the "Content-Length: 0" header to a proxied request
without body if the header isn't presented in the original request.

Thanks to Amazon.

diff --git a/src/http/v2/ngx_http_v2.c b/src/http/v2/ngx_http_v2.c
--- a/src/http/v2/ngx_http_v2.c
+++ b/src/http/v2/ngx_http_v2.c
@@ -3424,7 +3424,9 @@ ngx_http_v2_run_request(ngx_http_request
         return;
     }
 
-    r->headers_in.chunked = (r->headers_in.content_length_n == -1);
+    if (r->headers_in.content_length_n == -1 && !r->stream->in_closed) {
+        r->headers_in.chunked = 1;
+    }
 
     ngx_http_process_request(r);
 }
@@ -3638,7 +3640,7 @@ ngx_http_v2_process_request_body(ngx_htt
             rb->buf = NULL;
         }
 
-        if (r->headers_in.content_length_n == -1) {
+        if (r->headers_in.chunked) {
             r->headers_in.content_length_n = rb->received;
         }