Ticket #31701: 31701.13.diff

src/wp-includes/js/wp-emoji.js

@@ -30 +30 @@
                  */
                 replaceEmoji = false,
 
+                isIE8 = window.navigator.userAgent.indexOf( 'IE 8' ) !== -1,
+
                 // Private
                 twemoji, timer,
                 count = 0;
@@ -46 +48 @@
                                         return;
                                 }
 
-                                // Still waiting. 
+                                // Still waiting.
                                 window.clearTimeout( timer );
                                 timer = window.setTimeout( load, 50 );
                                 count++;
@@ -131 +133 @@
 
                 // Load when the readyState changes to 'interactive', not 'complete'.
                 function onLoad() {
-                        if ( 'interactive' === document.readyState ) {
+                        if ( ( ! isIE8 && 'interactive' === document.readyState ) || ( isIE8 && 'complete' === document.readyState ) ) {
                                 load();
                         }
                 }
@@ -144 +146 @@
                         supportsFlagEmoji = window._wpemojiSettings.supports.flag;
                         replaceEmoji = ! supportsEmoji || ! supportsFlagEmoji;
 
-                        if ( 'loading' == document.readyState ) {
+                        if ( ( ! isIE8 && 'loading' === document.readyState ) || ( isIE8 && 'complete' !== document.readyState ) ) {
                                 if ( document.addEventListener ) {
                                         document.addEventListener( 'readystatechange', onLoad, false );
                                 } else if ( document.attachEvent ) {