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

Posted on 2013-11-26
Last Modified: 2013-11-30
<meta http-equiv="X-UA-Compatible" content="IE=edge">

This is giving me validation errors. I did a google search and as I understand it this just tells previous versions of IE to display using previous standards.

Is this tag really necessary? How would I get it to validate?

I'm going to leave this and focus on my errors. Even if it doesn't validate.
Question by:burnedfaceless
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LVL 58

Expert Comment

ID: 39678828
Strictly speaking it isn't valid.  If you are really pedantic about getting a green passed message in W3C you can pass it in the headers rather than the page.

And edge tells IE to use the latest version not a previous version (compatibility mode)

Author Comment

ID: 39678869
How would I write this to validate, and give the information to internet explorer it needs?

<!--[if IE 6]>
Special instructions for IE 6 here
LVL 58

Expert Comment

ID: 39678881
Not sure what you mean, if you need to add in IE6 specific js or css then you just place it inside the conditional tags.
<!--[if IE 6]>
<script scrc="some.js"></script>
<link media="screen" href="/styles.css" type="text/css" rel="stylesheet">

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Author Comment

ID: 39678935
Is it that important that I need to hide it from other browsers (for sake of validation or errors on other browsers) and is it important enough that i.e. needs it?

The comment tags apply to html as well so I could enter the meta tag html into that.

I'm not sure which version to put in the tags because it refers to that version and all previous internet explorer versions.
LVL 58

Accepted Solution

Gary earned 500 total points
ID: 39678970
Other browsers will just ignore it. It's not worth worrying about the validation.
Don't use any version just use IE=edge and it will force the browser to render as the version of IE it is loaded in i.e. in IE9 it will use IE9's rendering engine, in IE8 it will use IE8's - in other words it won't fall into compatibility/quirks mode to display a website.

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