Changeset 47771 for trunk/src/wp-includes/theme.php

Timestamp:

05/06/2020 08:13:38 PM (5 years ago)

Author:

ocean90

Message:

Administration: Remove any CSS related to Internet Explorer versions 6 – 10.

In WordPress 3.2 support for IE6 was dropped, IE7 followed a few versions later. With the 4.8 release, WordPress officially ended support for Internet Explorer versions 8, 9, and 10. Yet, we still have shipped CSS for the unsupported IE versions....until now! Goodbye to ie.css and star hacks!

• Removes ie.css and ie style handle.
• Removes IE specific class names and any related CSS.
• Drops support for IE8 and older in wp_customize_support_script().
• Updates compatibility mode for CSS minification to ie11.

Props ayeshrajans, isabel_brison, afercia, netweb, peterwilsoncc, ocean90.
Fixes #17232, #46015.

File:

• trunk/src/wp-includes/theme.php (modified) (2 diffs)

trunk/src/wp-includes/theme.php

@@ -3318 +3318 @@
  * @since 3.4.0
  * @since 4.7.0 Support for IE8 and below is explicitly removed via conditional comments.
+ * @since 5.5.0 IE8 and older are no longer supported.
  */
 function wp_customize_support_script() {
@@ -3325 +3326 @@
     $type_attr    = current_theme_supports( 'html5', 'script' ) ? '' : ' type="text/javascript"';
     ?>
-    <!--[if lte IE 8]>
-        <script<?php echo $type_attr; ?>>
-            document.body.className = document.body.className.replace( /(^|\s)(no-)?customize-support(?=\s|$)/, '' ) + ' no-customize-support';
-        </script>
-    <![endif]-->
-    <!--[if gte IE 9]><!-->
-        <script<?php echo $type_attr; ?>>
-            (function() {
-                var request, b = document.body, c = 'className', cs = 'customize-support', rcs = new RegExp('(^|\\s+)(no-)?'+cs+'(\\s+|$)');
-
-        <?php   if ( $cross_domain ) : ?>
-                request = (function(){ var xhr = new XMLHttpRequest(); return ('withCredentials' in xhr); })();
-        <?php   else : ?>
-                request = true;
-        <?php   endif; ?>
-
-                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]-->
+    <script<?php echo $type_attr; ?>>
+        (function() {
+            var request, b = document.body, c = 'className', cs = 'customize-support', rcs = new RegExp('(^|\\s+)(no-)?'+cs+'(\\s+|$)');
+
+    <?php   if ( $cross_domain ) : ?>
+            request = (function(){ var xhr = new XMLHttpRequest(); return ('withCredentials' in xhr); })();
+    <?php   else : ?>
+            request = true;
+    <?php   endif; ?>
+
+            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>
     <?php
 }