vhad/wordpress-develop
1
0
Fork 0
mirror of https://github.com/gosticks/wordpress-develop.git synced 2026-08-11 12:20:22 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Customize: Opt to disable IE8 support via conditional comments instead of using unreliable Array.prototype.indexOf feature detection.

Browse Source 
Deprecate/remove `WP_Customize_Manager::customize_preview_html5()` and remove `document.head` polyfill, both of which were only in place for IE8 support.

Props ryankienstra, westonruter.
Fixes #38021.


git-svn-id: https://develop.svn.wordpress.org/trunk@38649 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Weston Ruter
2016-09-25 04:34:34 +00:00
parent f3e8e7735d
commit b12ff9487d
3 changed files with 24 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/wp-includes/theme.php
+21 -12
View File
@@ -2151,6 +2151,7 @@ function wp_customize_url( $stylesheet = null ) {
* to the body tag by default.
*
* @since 3.4.0
* @since 4.7.0 Support for IE8 and below is explicitly removed via conditional comments.
*/
function wp_customize_support_script() {
$admin_origin = parse_url( admin_url() );
@@ -2158,20 +2159,28 @@ function wp_customize_support_script() {
$cross_domain = ( strtolower( $admin_origin[ 'host' ] ) != strtolower( $home_origin[ 'host' ] ) );
?>
<script type="text/javascript">
(function() {
var request, b = document.body, c = 'className', cs = 'customize-support', rcs = new RegExp('(^|\\s+)(no-)?'+cs+'(\\s+|$)');
<!--[if lte IE 8]>
<script type="text/javascript">
document.body.className = document.body.className.replace( /(^|\s)(no-)?customize-support(?=\s|$)/, '' ) + ' no-customize-support';
</script>
<![endif]-->
<!--[if gte IE 9]><!-->
<script type="text/javascript">
(function() {
var request, b = document.body, c = 'className', cs = 'customize-support', rcs = new RegExp('(^|\\s+)(no-)?'+cs+'(\\s+|$)');
<?php if ( $cross_domain ): ?>
request = (function(){ var xhr = new XMLHttpRequest(); return ('withCredentials' in xhr); })();
<?php else: ?>
request = true;
<?php endif; ?>
<?php if ( $cross_domain ) : ?>
request = (function(){ var xhr = new XMLHttpRequest(); return ('withCredentials' in xhr); })();
<?php else : ?>
request = true;
<?php endif; ?>
b[c] = b[c].replace( rcs, ' ' );
b[c] += ( window.postMessage && request && Array.prototype.indexOf ? ' ' : ' no-' ) + cs;
}());
</script>
b[c] = b[c].replace( rcs, ' ' );
// The customizer requires postMessage and CORS (if the site is cross domain)
b[c] += ( window.postMessage && request ? ' ' : ' no-' ) + cs;
}());
</script>
<!--<![endif]-->
<?php
}