# HG changeset patch
# User Maxim Dounin <mdounin@mdounin.ru>
# Date 1461003504 -10800
# Node ID ab16126a06a0e04611acca5d346e5b05b9d65dd3
# Parent  8df664ebe0377602a021c775b2123f60126575e1
HTTP/2: write logs when refusing streams with data.

Refusing streams is known to be incorrectly handled at least by IE, Edge
and Safari.  Make sure to provide appropriate logging to simplify fixing
this in the affected browsers.

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
@@ -1060,6 +1060,10 @@ ngx_http_v2_state_headers(ngx_http_v2_co
 
     if (!h2c->settings_ack && !(h2c->state.flags & NGX_HTTP_V2_END_STREAM_FLAG))
     {
+        ngx_log_error(NGX_LOG_INFO, h2c->connection->log, 0,
+                      "client sent stream with data "
+                      "before settings were acknowledged");
+
         status = NGX_HTTP_V2_REFUSED_STREAM;
         goto rst_stream;
     }