Ticket #31202: 31202.diff

src/wp-admin/customize.php

@@ -181 +181 @@
                         </a>
                 </div>
         </form>
-        <div id="customize-preview" class="wp-full-overlay-main"></div>
+        <div id="customize-preview" class="wp-full-overlay-main" title="<?php esc_attr_e( 'Site preview' ); ?>"></div>
         <?php
 
         // Render control templates.