Tutorial :Force IE8 Into IE7 Compatiblity Mode



Question:

Is there a way to force IE8 into IE7 compatibility mode using .NET or Javascript?


Solution:1

If you add this to your meta tags:

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" />  

IE8 will render the page like IE7.


Solution:2

You can do it in the web.config

    <httpProtocol>          <customHeaders>              <add name="X-UA-Compatible" value="IE=7"/>          </customHeaders>      </httpProtocol>  

I have better results with this over the above solutions. Not sure why this wasn't given as a solution. :)


Solution:3

I might have found it now. http://blog.lroot.com/articles/the-ie7-compatibility-tag-force-ie8-to-use-the-ie7-rendering-mode/

The site says adding this meta tag:

<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7">  

or adding this to .htaccess

Header set X-UA-Compatible: IE=EmulateIE7   


Solution:4

There is an HTTP header you can set that will force IE8 to use IE7-compatibility mode.


Solution:5

its even simpler than that. Using HTML you can just add this metatag to your page (first thing on the page):

<meta http-equiv="X-UA-Compatible" content="IE=7" />  

If you wanted to do it using.net, you just have to send your http request with that meta information in the header. This would require a page refresh to work though.

Also, you can look at a similar question here: Compatibility Mode in IE8 using VBScript


Solution:6

one more if you want to switch IE 8 page render in IE 8 standard mode

<meta http-equiv="X-UA-Compatible" content="IE=100" /> <!-- IE8 mode -->  


Solution:7

A note to this:

IE 8.0s emulation only promises to display the page the same. There are subtle differences that might cause functionality to break. I recently had a problem with just that. Where IE 7.0 uses a javascript wrapper-function called "anonymous()" in IE 8.0 the wrapper was named differently.

So do not expect things like JavaScript to "just work", because you turn on emulation.


Solution:8

This can be done in IIS: http://weblogs.asp.net/joelvarty/archive/2009/03/23/force-ie7-compatibility-mode-in-ie8-with-iis-settings.aspx

Read the comments as well: Wednesday, April 01, 2009 8:57 AM by John Moore

A quick follow-up. This worked great for my site as long as I use the IE=EmulateIE7 value. Trying to use the IE=7 resulted in my site essentially hanging when run on IE8.


Solution:9

my code has this tag

meta http-equiv="X-UA-Compatible" content="IE=7" />

is there a way where i can skip this tag and yet layouts get displayed well and fine using that tag the display will work upto IE 7 but i want to run it wel in further versions...


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