Why doesn't Internet Explorer 11 honour conditional comments even when emulating Internet Explorer 8 document mode?

internet-explorer browser conditional-comments internet-explorer-11 ie11-developer-tools
thasmo picture thasmo · Oct 18, 2013 · Viewed 41.5k times · Source

I'm using the new Internet Explorer 11 developer tools to switch the document mode to "8", but conditional comments are still ignored, that is, they are not properly parsed and behave like normal comments. So any referenced file inside the conditional comment is not requested/loaded by the browser.

Why does this happen? Is it a bug?

If you think that this is indeed a bug that needs to be fixed, please go in and say that you too can reproduce this on the Microsoft bug report that is reported for this issue:
Conditional comments do not work when emulating document modes via F12 Developer Tools.

Update: This issue has been reported to be fixed in the mentioned bug report.

Answer

L84 picture L84 · Jun 27, 2014

According to Jacob Rossi [MSFT]

This should be fixed in Update 1 for IE11, released last week.

That was posted on April 22, 2014.

In running a few tests myself it does appear that this was fixed and all is running smoothly again for testing the most amazing browser ever produced...Internet Explorer!

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