Softminer.net

X-UA-Compatibility Meta Tag and HTTP Response Header

http://msdn.microsoft.com/en-us/library/ff955275(v=vs.85).aspx


http://msdn.microsoft.com/en-us/library/ff955410(v=vs.85).aspx

Starting with IE11, document modes are considered deprecated and should no longer be used

If a webpage is retrieved from a website in the Local intranet zone (see "About URL Security Zones" at [MSDN-SECZONES]), IE7 mode is used.

Internet Explorer displays webpages that contain the HTML5 document type in standards mode, which provides the highest support available for established and emerging industry standards, including HTML5, CSS3, SVG, and others.

How IE choose between document mode
http://msdn.microsoft.com/en-us/library/ff405803(v=vs.85).aspx


setup on the server
http://msdn.microsoft.com/en-us/library/jj676913(v=vs.85).aspx

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.webServer>
    <httpProtocol>
      <customHeaders>
        <clear />
        <add name="X-UA-Compatible" value="IE=10" />
      </customHeaders>
    </httpProtocol>
  </system.webServer>
</configuration>
This is a nice website which tells you about html5 features
http://html5test.com/