Don’t render the control’s content – it’s rendered with a JS template.
File: wp-includes/customize/class-wp-customize-nav-menu-item-control.php
public function render_content() {} | Version | Description |
|---|---|
| 4.3.0 | Introduced. |
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https://developer.wordpress.org/reference/classes/wp_customize_nav_menu_item_control/render_content