http://bugs.winehq.org/show_bug.cgi?id=36868
--- Comment #1 from lizhenbo litimetal@gmail.com --- In http://lzbtesthustoj1000.u.qiniudn.com/htmlform.html, such code exists
<form action="http://www.baidu.com/" method="get" target="_blank">
If we change it to <form action="http://www.baidu.com/" method="get">, then wine's builtin browser will work well.
Thank Qian Hong for spotting it.