[疑难杂症]window.open和window.showModalDialog的status=no无法关闭状态栏

[环境] Windows XP SP2 + IE系列
[现象] window.showModalDialog()弹出模态对话框，将其属性status设置为no。在Intranet区域即本地网络不见状态栏，但是在Internet中状态栏又显示出来了。
[原因] Windows XP SP2的新安全特性Windows Restrictions security feature（WRSF），为了安全，SP2特意强制将弹出的标题栏和状态栏都显示，让浏览者知道自己正在访问哪个地址哪个网页，防止恶意欺骗。此特性对Internet区域有效，而对本地的Intramet区域无效，就是说在XP SP2下使用代码status=no控制窗口无状态栏已经无效了。

[解决]一，在客户端上将系统的站点地址加入IE属性“安全”选项中的“本地Intranet”区域。
         二，修改客户端注册表键值关闭WRSF特性。
[HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Internet

Explorer/Main/FeatureControl/FEATURE_WINDOWS_RESTRICTIONS] iexplore.exe=1
[备注]B/S系统的每个客户端都需要修改就似乎不太现实，惟有让状态栏显示。

[参照]

http://www.microsoft.com/technet/prodtechnol/winxppro/maintain/sp2brows.mspx#E6SAE

 

Internet Explorer Using Feature Control Registry Settings with Security Zone Settings
What do Feature Control Registry Settings and Security Zone Settings do?

Feature Control registry settings are provided in Windows XP SP 2 so that a specific

process can be configured to opt-in to a particular security feature. In the following

example, Internet Explorer has been configured to use the Windows Restrictions security

feature（WRSF）:
[HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft
/Internet Explorer/Main/FeatureControl
/FEATURE_WINDOWS_RESTRICTIONS] iexplore.exe=1

Once a process has been configured to use a security feature, the security feature is

running and security zone settings can be applied for more precision, if implemented

for that feature. In the Security Settings tab of Internet Options, the user can adjust

these settings for many of the new Windows XP SP2 feature controls. If you select

Enable, it lowers the security settings and allows the behavior to run less securely,

or in the same manner as it did in Windows XP Service Pack 1. For example, if Windows

Restriction is set to Enable in the Intranet zone, Windows Restrictions will not be

applied — script-initiated windows can be opened as freely as in Windows XP SP1. The

Windows XP SP2 restrictions can be applied again by setting the security zone setting

to Disable, which blocks the less-secure behavior while the feature control is enabled

for that process.

For example, if the feature is turned on for Windows Restrictions, this feature:

? Forces the status bar to be present in script-initiated Internet Explorer windows

with the title bar [those that were created with window.open()].
 
? Constrains the size and positioning of script-initiated Internet Explorer windows

that have title and status bars to ensure that the title bar and the status bar in

these windows is always visible to the user.