HTTP/2: Don't handle Remote Disconnected if we haven't switched yet

In that case we haven't created the h2 handler yet, so it will
crash when trying to access various members.

Task-number: QTBUG-85902
Change-Id: Id0699ff06ef67748a16622703f731db0b0867771
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/network/access/qhttpnetworkconnectionchannel.cpp b/src/network/access/qhttpnetworkconnectionchannel.cpp
index ba05e75794..b85d718f5f 100644
--- a/src/network/access/qhttpnetworkconnectionchannel.cpp
+++ b/src/network/access/qhttpnetworkconnectionchannel.cpp
@@ -979,7 +979,8 @@ void QHttpNetworkConnectionChannel::_q_error(QAbstractSocket::SocketError socket
             // this check is under this condition in 'if'):
             if (protocolHandler.data()) {
                 if (connection->connectionType() == QHttpNetworkConnection::ConnectionTypeHTTP2Direct
-                    || connection->connectionType() == QHttpNetworkConnection::ConnectionTypeHTTP2) {
+                    || (connection->connectionType() == QHttpNetworkConnection::ConnectionTypeHTTP2
+                        && switchedToHttp2)) {
                     auto h2Handler = static_cast<QHttp2ProtocolHandler *>(protocolHandler.data());
                     h2Handler->handleConnectionClosure();
                     protocolHandler.reset();