Вопрос

As the question states basically. If you have X-UA-Compatible in both your HTTP headers and a meta tag on your document, and they conflict, which one gets respected by IE?

Это было полезно?

Решение

TL;DR: The meta tag wins

I found the following (updated) flowchart here (link is broken) and associated blog post that provides an explanation of how IE9 determines document mode:

enter image description here

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