From e91aedd84020674e14f2e2f7c533ca1c0db88bec Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Thu, 7 May 2015 08:59:28 +0200
Subject: [PATCH] IsPipeliningPossible: http2 can always "pipeline" (multiplex)

---
 lib/url.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/lib/url.c b/lib/url.c
index 688dd9ea0..dde53f0e4 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -2813,13 +2813,20 @@ static bool SocketIsDead(curl_socket_t sock)
 static bool IsPipeliningPossible(const struct SessionHandle *handle,
                                  const struct connectdata *conn)
 {
+  /* If a HTTP protocol and pipelining is enabled */
   if((conn->handler->protocol & PROTO_FAMILY_HTTP) &&
-     Curl_multi_pipeline_enabled(handle->multi) &&
-     (handle->set.httpreq == HTTPREQ_GET ||
-      handle->set.httpreq == HTTPREQ_HEAD) &&
-     handle->set.httpversion != CURL_HTTP_VERSION_1_0)
-    return TRUE;
+     Curl_multi_pipeline_enabled(handle->multi)) {
 
+    if((handle->set.httpversion != CURL_HTTP_VERSION_1_0) &&
+       (handle->set.httpreq == HTTPREQ_GET ||
+        handle->set.httpreq == HTTPREQ_HEAD))
+      /* didn't ask for HTTP/1.0 and a GET or HEAD */
+      return TRUE;
+
+    if(conn->httpversion == 20)
+      /* talking HTTP/2 */
+      return TRUE;
+  }
   return FALSE;
 }