Ingo Chao wrote:

>> Alex Robinson wrote:
>>> http://www.satzansatz.de/ie8/xua7.html
>>> does not show the generated content, but the Conditional Comment for 
>>> _IE8_
>>> Is this expected? Even if the X-UA-Compatible is set to "IE=7", the
>>> conditional comment acts as if this is IE8?
>> 
>> 
>> I noticed this when I added conditional comments to my XU-A tests
>> 
>>    http://www.fu2k.org/alex/css/cssjunk/ie8/xuas
>> 
>> but then read something (er, where I don't remember) that said that 
>> conditional comments were currently broken but would obviously be fixed 
>> before final release. Of course, I cannot find that page now :(
>> 
>> Yes, it's incredibly bizarre that the beta has been shipped without 
>> proper support for the X-UA + CC combo, given how much Microsoft has 
>> stressed that those are the methods we should use.
> 
> 
> The conditional behavior has to be corrected. Until then, reports of 
> broken pages that rely heavily on the correct CC interpretation are of 
> not much worth for MS.
[...]
> Ingo


This is real problem if an author decides that IE8 should to go into IE7 mode 
and render like the true IE7. No conditional comments meant for IE7 are used. 
It seems like that X-UA "IE=8" and [if IE 8] or generally IE8 mode alway wins 
out. Have you tried [if lt IE 8]?


Even before they decided to have IE8 standard mode as default I was raising 
issues like will IE8 in standard mode use conditional comments like [if IE] or 
[if gte IE 7]. I now know that they do so IE7 buggy styles will be targeting 
IE8 edge.


> Second: The emulate-IE7-button should overrule the X-UA "IE=8".


Make sure when you do this that you only have one tab open, since toggling into 
IE7 strict mode will only change the mode for the first opened tab. Changing 
the order of these tabs make no difference. It is only the first opened tab 
that will change in mode.

You are correct Ingo, the emulate IE=7 toggle mode should overrule X-UA "IE=8". 
What we need is a valid IE8 filter hack and indeed I have found one.

<http://css-class.com/test/ie8hack-valid.htm>


Toggling the modes in IE8 will show a big difference.

The last one can be used to test IE7 buggy rules fixes when IE8 is emulating 
IE7 mode regardless of what ever else is on the page. Yes these hacks work 
better and are more reliable then any X-UA + CC combo. :-)


Alan

http://css-class.com/test/

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