IE 6跳过HTTP-Equiv兼容模式吗？

Question

本文指定IE9（边缘），IE8，IE7和IE5作为有效的HTTP-Equiv文档模式。为什么IE6跳过？它是否与IE5相同？我的公司支持IE6 +，所以我想找到一种可靠的方法来测试IE6兼容性UI更改而不需要VM。

Answer 1

The article specifies the compatibility modes IE (8-9) can run in. IE5(.5) equals to quirks mode. IE8 cannot run in IE6 compatibility mode. IE6 does not absolutely render the same as IE5(.5) (unless it's in quirks mode).

If you want a reliable way to test in IE6, IE7, etc., you should try something like IETester (which I found to be reliable), Spoon, etc. if you don't want to use VMs.

You should also check this SO question. As stated there:

Also, don't trust IE8 compatibility mode.