Ticket #6967: 6967.patch

plugin.js

@@ -39 +39 @@
                                                 max = editor.config.autoGrow_maxHeight;
 
                                         ( min == undefined ) && ( editor.config.autoGrow_minHeight = min = 200 );
+                                        
+                                        // Manage visibility of the vertical scrollbar in order to:
+                                        // - avoid flickering
+                                        // - ensure that it is hidden when it's not necessary (#6967)
+                                        var overflowY = ( max && newHeight > max ) ? 'auto' : 'hidden';
+                                        doc.getDocumentElement().setStyle( 'overflow-y', overflowY );
+                                        
                                         if ( min )
                                                 newHeight = Math.max( newHeight, min );
                                         if ( max )