Ticket #46062: 46062.1.diff

src/js/_enqueues/vendor/tinymce/plugins/wordpress/plugin.js

@@ -1064 +1064 @@
                         }
                 }
 
-                // For full height editor.
-                editor.on( 'resizewindow scrollwindow', hide );
-                // For scrollable editor.
-                editor.dom.bind( editor.getWin(), 'resize scroll', hide );
+                editor.dom.bind( editor.getWin(), 'resize', hide );
 
+                if ( editor.inline ) {
+                        // Enable `capture` for the event.
+                        // This will hide/reposition the toolbar on any scrolling in the document.
+                        document.addEventListener( 'scroll', hide, true );
+                } else {
+                        editor.dom.bind( editor.getWin(), 'scroll', hide );
+                        // For full height iframe editor.
+                        editor.on( 'resizewindow scrollwindow', hide );
+                }
+
                 editor.on( 'remove', function() {
+                        document.removeEventListener( 'scroll', hide, true );
                         editor.off( 'resizewindow scrollwindow', hide );
                         editor.dom.unbind( editor.getWin(), 'resize scroll', hide );
                 } );