Internet Explorer 11 X-UA-Compatible IE=edge not working
Question
I have a website that adds a header on each page of X-UA-Compatible IE=EmulateIE9 due to some browser compatibility issues. I am adding some newer pages that no longer need this. The new pages follow other pages with the IE9 header. I add a header for the new pages of X-UA-Compatible IE=edge. But when the new page is rendered by Internet Explorer, it is still treating it as IE9 and not IE11. This doesn't happen when I run from localhost. It only happens when I run the website from another web server. I experience this on both Internet and Intranet.
Here are the headers:
HTTP/1.1 200 OK
Cache-Control: private
Content-Type: text/html; charset=utf-8
Content-Encoding: gzip
Vary: Accept-Encoding
Server: Microsoft-IIS/7.5
X-UA-Compatible: IE=edge
X-AspNet-Version: 4.0.30319
p3p: CP="NON OTPa OUR NOR STA"
I've also tried using the HTML to force the rendering of IE 11:
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="HeadTag">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
I've checked to make sure that the website isn't running in Compatibility Mode. And there aren't any web.config settings that add headers. Any ideas why Internet Explorer ignores the IE11 setting?
1 answers
solution1
2 2015-08-14 12:41:42
You've got the header and the meta tag in place, so everything should be okay.
My guess is the site is listed in your Enterprise compatibility list.
This is a feature in IE11 that you can use to force a site into a specific compatibility mode regardless of any other considerations like the X-UA-Compatibility tag or local browser settings. This list is intended for enterprise users so that they can force a site into a particular mode using an enterprise-wide config.
See more about this here: https://msdn.microsoft.com/en-us/library/dn872481.aspx
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