KNOWN_BUGS: HTTP/2 connections through HTTPS proxy frequently stall

Closes #6936

diff --git a/docs/KNOWN_BUGS b/docs/KNOWN_BUGS
index b4ad169bdc52dff1aee14f11980275cde8043a55..173fe4c9e115ebaba386a80e42114852f36e9619 100644 (file)
--- a/docs/KNOWN_BUGS
+++ b/docs/KNOWN_BUGS
@@ -154,6 +154,7 @@ problems may have been fixed or changed somewhat since this was written!
  17.2 HTTP/2 frames while in the connection pool kill reuse
  17.3 ENHANCE_YOUR_CALM causes infinite retries
  17.4 Connection failures with parallel HTTP/2
+ 17.5 HTTP/2 connections through HTTPS proxy frequently stall
 
  18. HTTP/3
  18.1 If the HTTP/3 server closes connection during upload curl hangs
@@ -1128,6 +1129,9 @@ problems may have been fixed or changed somewhat since this was written!
 
  See https://github.com/curl/curl/issues/5611
 
+17.5 HTTP/2 connections through HTTPS proxy frequently stall
+
+ See https://github.com/curl/curl/issues/6936
 
 18. HTTP/3