From 4b40730b18959709be38eaad06ef2cb0088b9dd5 Mon Sep 17 00:00:00 2001
From: Vladimir Homutov <vl@nginx.com>
Date: Fri, 3 Apr 2020 09:53:51 +0300
Subject: [PATCH] Fixed missing propagation of need_ack flag from frames to
 packet.

---
 src/event/ngx_event_quic.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/event/ngx_event_quic.c b/src/event/ngx_event_quic.c
index 3c1097455..9cb26261e 100644
--- a/src/event/ngx_event_quic.c
+++ b/src/event/ngx_event_quic.c
@@ -1657,6 +1657,10 @@ ngx_quic_send_frames(ngx_connection_t *c, ngx_queue_t *frames)
             return NGX_ERROR;
         }
 
+        if (f->need_ack) {
+            pkt.need_ack = 1;
+        }
+
         p += len;
         f->pnum = ns->pnum;
     }