Title: WP_Customize_Manager::remove_preview_signature
Published: April 25, 2014
Last modified: August 20, 2026

---

# WP_Customize_Manager::remove_preview_signature( callable|null $callback = null ): callable|null

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/wp_customize_manager/remove_preview_signature/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/wp_customize_manager/remove_preview_signature/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/wp_customize_manager/remove_preview_signature/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/classes/wp_customize_manager/remove_preview_signature/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/classes/wp_customize_manager/remove_preview_signature/?output_format=md#changelog)

This method has been deprecated since 4.7.0.

Removes the signature in case we experience a case where the Customizer was not 
properly executed.

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/wp_customize_manager/remove_preview_signature/?output_format=md#parameters)󠁿

 `$callback`callable|nulloptional

Value passed through for [‘wp_die_handler’](https://developer.wordpress.org/reference/hooks/wp_die_handler/)
filter.

Default:`null`

## 󠀁[Return](https://developer.wordpress.org/reference/classes/wp_customize_manager/remove_preview_signature/?output_format=md#return)󠁿

 callable|null Value passed through for ['wp_die_handler'](https://developer.wordpress.org/reference/hooks/wp_die_handler/)
filter.

## 󠀁[Source](https://developer.wordpress.org/reference/classes/wp_customize_manager/remove_preview_signature/?output_format=md#source)󠁿

    ```php
    public function remove_preview_signature( $callback = null ) {
    	_deprecated_function( __METHOD__, '4.7.0' );

    	return $callback;
    }
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-wp-customize-manager.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.1/src/wp-includes/class-wp-customize-manager.php#L2253)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/7.1/src/wp-includes/class-wp-customize-manager.php#L2253-L2257)

## 󠀁[Related](https://developer.wordpress.org/reference/classes/wp_customize_manager/remove_preview_signature/?output_format=md#related)󠁿

| Uses | Description | 
| [_deprecated_function()](https://developer.wordpress.org/reference/functions/_deprecated_function/)`wp-includes/functions.php` |

Marks a function as deprecated and inform when it has been used.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/classes/wp_customize_manager/remove_preview_signature/?output_format=md#changelog)󠁿

| Version | Description | 
| [4.7.0](https://developer.wordpress.org/reference/since/4.7.0/) | Deprecated.  | 
| [3.4.0](https://developer.wordpress.org/reference/since/3.4.0/) | Introduced. |

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