Ticket #27013: 27013.2.patch

src/wp-admin/js/post.js

@@ -1064 +1064 @@
                 });
         }
 
-        if ( ! ( 'ontouchstart' in window ) ) {
+        if ( ! ( 'ontouchstart' in window ) && $( 'body' ).hasClass( 'wp-admin' ) ) {
                 // When scrolling with mouse wheel or trackpad inside the Text editor, don't scroll the whole window
                 $content = $('#content').on( 'onwheel' in $document[0] ? 'wheel.text-editor-scroll' : 'mousewheel.text-editor-scroll', function( event ) {
                         var delta, origEvent = event.originalEvent;