QNAM - fix poor performance of HEAD request with authentication

QHttpNetworkReply was waiting for a body to be sent for 401 and 407
responses, whereas with a HTTP HEAD request, there will be no body.

This delayed the authentication signal until after the http channel
is closed by the server after a timeout. For example with the server
used for autotesting, the authentication signal is delayed 15 seconds.

When the server has a very long timeout, the authentication signal may
not be emitted at all.

Task-Number: QT-5304
Reviewed-By: Martin Petersson

1 files changed, 1 insertions, 1 deletions

diff --git a/src/network/access/qhttpnetworkreply.cpp b/src/network/access/qhttpnetworkreply.cpp
index 0f2fcba..129e2c6 100644
--- a/src/network/access/qhttpnetworkreply.cpp
+++ b/src/network/access/qhttpnetworkreply.cpp
@@ -816,7 +816,7 @@ bool QHttpNetworkReplyPrivate::expectContent()
         || statusCode == 204 || statusCode == 304)
         return false;
     if (request.operation() == QHttpNetworkRequest::Head)
-        return !shouldEmitSignals();
+        return false; // no body expected for HEAD request
     qint64 expectedContentLength = contentLength();
     if (expectedContentLength == 0)
         return false;