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Add an X-UA-Compatible header to WordPress
<?php
/*
Plugin Name: Force IE Edge
Description: Add an X-UA-Compatible header to WordPress
Author: Christopher Davis
Author URI: http://christopherdavis.me
License: GPL2
Copyright 2012 Christopher Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2, as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
add_filter('wp_headers', 'cdfie_add_header');
/*
* Adds a header to WordPress
*
* @return array Where header => header value
*/
function cdfie_add_header($headers)
{
$headers['X-UA-Compatible'] = 'IE=edge,chrome=1';
return $headers;
}
@szepeviktor

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commented May 24, 2013

please consider
if (isset($_SERVER['HTTP_USER_AGENT']) && (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false))

@iLenTheme

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commented Jun 27, 2014

Thanks, I used to create my system.

@davidbouche

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commented Jun 27, 2016

How/where to add this file on an existing Wordpress Installation ? Thanks for your answer. David.

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