移除WordPress4.2+中的表情颜文字concatemoji

  如果你更新了WordPress 最新版本的4.2 版本,查看网页源代码你会发现WordPress 会自动在加载一段用于支持emjo 表情的脚本(JS+CSS),对于大部分人来说,这个是十分鸡肋的功能,反而影响加载速度。但看部分加载源居然是wp.org的js 文件(wp.org 有被墙否?)

<script type=”text/javascript”>
            window._wpemojiSettings = {“baseUrl”:”http:\/\/s.w.org\/images\/core\/emoji\/72×72\/”,”ext”:”.png”,”source”:{“concatemoji”:”http:\/\/localhost\/wordpress\/wp-includes\/js\/wp-emoji-release.min.js?ver=4.2″}};
            !function(a,b,c){function d(a){var c=b.createElement(“canvas”),d=c.getContext&&c.getContext(“2d”);return d&&d.fillText?(d.textBaseline=”top”,d.font=”600 32px Arial”,”flag”===a?(d.fillText(String.fromCharCode(55356,56812,55356,56807),0,0),c.toDataURL().length>3e3):(d.fillText(String.fromCharCode(55357,56835),0,0),0!==d.getImageData(16,16,1,1).data[0])):!1}function e(a){var c=b.createElement(“script”);c.src=a,c.type=”text/javascript”,b.getElementsByTagName(“head”)[0].appendChild(c)}var f;c.supports={simple:d(“simple”),flag:d(“flag”)},c.supports.simple&&c.supports.flag||(f=c.source||{},f.concatemoji?e(f.concatemoji):f.wpemoji&&f.twemoji&&(e(f.twemoji),e(f.wpemoji)))}(window,document,window._wpemojiSettings);
        </script>
        <style type=”text/css”>
img.wp-smiley,
img.emoji {
    display: inline !important;
    border: none !important;
    box-shadow: none !important;
    height: 1em !important;
    width: 1em !important;
    margin: 0 .07em !important;
    vertical-align: -0.1em !important;
    background: none !important;
    padding: 0 !important;
}
</style>

去除方法:在主题目录下 Functions.php 文件中添加

/**
* Disable the emoji’s
*/
function disable_emojis() {
remove_action( ‘wp_head’, ‘print_emoji_detection_script’, 7 );
remove_action( ‘admin_print_scripts’, ‘print_emoji_detection_script’ );
remove_action( ‘wp_print_styles’, ‘print_emoji_styles’ );
remove_action( ‘admin_print_styles’, ‘print_emoji_styles’ );
remove_filter( ‘the_content_feed’, ‘wp_staticize_emoji’ );
remove_filter( ‘comment_text_rss’, ‘wp_staticize_emoji’ );
remove_filter( ‘wp_mail’, ‘wp_staticize_emoji_for_email’ );
add_filter( ‘tiny_mce_plugins’, ‘disable_emojis_tinymce’ );
}
add_action( ‘init’, ‘disable_emojis’ );

/**
* Filter function used to remove the tinymce emoji plugin.
*/
function disable_emojis_tinymce( $plugins ) {
return array_diff( $plugins, array( ‘wpemoji’ ) );
}

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