Gecko can cancel an async request sometime between async_start_doc_binding
registers it and on_start_nsrequest actually processes it. The latter should
not attempt to continue in this case.
Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>
Signed-off-by: Jacek Caban <jacek@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>