为什么我会在 IE8 中触发怪异模式？
我正在开发一个页面，当我加载到 IE8 并查看开发人员工具时，它告诉我页面默认为怪异模式。
我有一个严格的 DTD：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
我什至继续放入显式标准开关，尽管我认为我不需要这样做：
<meta http-equiv="X-UA-Compatible" content="IE=8" />
我不明白为什么页面默认不是 IE8 标准？
我唯一能想到的是，要访问此页面，我首先必须登录应用程序，并且我必须遍历的第一个页面是旧的怪癖模式页面。 IE 是否在服务器级别决定使用哪种模式，还是应该逐页决定？
谢谢！
I'm working on a page that, when I load into IE8 and view the developers tools it tells me that page default is quirks mode.
I've got a strict DTD:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
I even went ahead and put in the explicit standards switch, though I didn't think I'd need to:
<meta http-equiv="X-UA-Compatible" content="IE=8" />
I can't understand why page default isn't IE8 standards?
Only thing I can think of is that to get to this page, I first have to log in to an application and the first pages I must traverse are old quirks mode pages. Does IE decide on which mode to use at a server level, or is it supposed to decide page by page?
Thanks!
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通常不会。 兼容性视图列表，这是特定于站点的，但这只会将您踢回 IE7 样式标准模式，而不是 IE5.5 样式怪异模式。
只要 DOCTYPE 是页面上的第一个内容，您的代码在其他方面看起来就不错。如果文档类型之前有注释、PI、XML 声明（IE8 之前的版本）或任何非空白文本内容，IE 将强制
document.compatMode= 'BackCompat'。如果控制字符已潜入，而您在文本编辑器中看不到，则可以做到这一点。问题页面示例？
Not generally, no. There is the ugliness of the compatibility view list, which is site-specific, but that only kicks you back to IE7-style-Standards Mode, not IE5.5-style-Quirks-Mode.
Your code otherwise looks OK, as long as that DOCTYPE is the very first thing on the page. IE will be forced to
document.compatMode= 'BackCompat'if there is a comment, PI, XML declaration (prior to IE8) or any non-whitespace textual content before the doctype. If a control character has snuck in that you can't see in your text editor, that could do it.Example problem page?