Ticket #24604: 24604.2.diff

src/wp-includes/default-widgets.php

@@ -431 +431 @@
  */
 class WP_Widget_Calendar extends WP_Widget {
 
+        private $show_id = true;
+
         public function __construct() {
                 $widget_ops = array('classname' => 'widget_calendar', 'description' => __( 'A calendar of your site’s Posts.') );
                 parent::__construct('calendar', __('Calendar'), $widget_ops);
@@ -445 +447 @@
                 if ( $title ) {
                         echo $args['before_title'] . $title . $args['after_title'];
                 }
-                echo '<div id="calendar_wrap">';
+                if( $this->show_id ) {
+                        echo '<div id="calendar_wrap" class="calendar_wrap">';
+                        $this->show_id = false;
+                } else {
+                        echo '<div class="calendar_wrap">';
+                }
                 get_calendar();
                 echo '</div>';
                 echo $args['after_widget'];