Add SVG Compatibility

[ghost]

Is your feature request related to a problem? Please describe. We need to be able to integrate SVGs into our development process for performance reasons.

Describe the solution you'd like Add the following code to the functions.php:

add_filter('wp_check_filetype_and_ext', function ($data, $file, $filename, $mimes) {
    global $wp_version;
    if ($wp_version !== '4.7.1' ) {
        return $data;
    }

    $filetype = wp_check_filetype($filename, $mimes);

    return [
        'ext'             => $filetype['ext'],
        'type'            => $filetype['type'],
        'proper_filename' => $data['proper_filename']
    ];  
    }, 10, 4
);

function cc_mime_types( $mimes )
{
    $mimes['svg'] = 'image/svg+xml';
    return $mimes;
}
add_filter('upload_mimes', 'cc_mime_types');

function fix_svg()
{
    echo '<style type="text/css">
            .attachment-266x266, .thumbnail img {
                width: 100% !important;
                height: auto !important;
            }
            </style>';
}
add_action('admin_head', 'fix_svg');