[Bug 21207] X-UA-Compatible should be recognized for <meta http-equiv=...>

https://www.w3.org/Bugs/Public/show_bug.cgi?id=21207

--- Comment #4 from David Foster <davidfstr+w3cbugs@gmail.com> ---
> I strongly oppose to making the IE=9 bit valid.

> I am less opposed to making IE=Edge valid

My thought here: Both are valid values for the X-UA-Compatible header, as
defined by Microsft's specification. Not recognizing the full set of valid
values would be confusing.

I agree that the IE=edge is the less brittle use case. I use it on my own site
to force IE to force standards mode (not compatibilty mode) when external code
(ex: Disqus) inserts HTML that IE doesn't understand.

Actually it's not clear to me that you need to parse the header value here at
all. Since it is an X- attribute, it could be stated that this is an
implementation-defined pragma. Browsers that do not recognize the header should
simply ignore it.

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Received on Wednesday, 13 March 2013 01:44:22 UTC