QNetworkAccessManager doesn't work on WinRT and WindowsPhone

When trying to use QNetworkAccessManager on WinRT or WinPhone for get, put, post and etc. operations it does nothing but print in console on runtime: "QObject::connect: Cannot connect (null)::stateChanged(QNetworkSession::State) to QNetworkReplyHttpImpl::_q_networkSessionStateChanged(QNetworkSession::State)".
On other platforms same code works fine (Windows desktop, android, iOS)