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apply_filters( 'wp_iframe_tag_add_loading_attr', string|bool $value, string $iframe, string $context )

Since
5.7.0
Filters the loading attribute value to add to an iframe. Default 'lazy'.

Description

Returning false or an empty string will not add the attribute.
Returning true will add the default value.

Compatibility

WordPress
since 5.7.0
  • 6.7.7
  • 6.8.8
  • 6.9.7
  • 7.0.4
  • 7.1.0

Present in every tracked release (6.7.7 to 7.1.0).

Parameters

$valuestring|bool
The loading attribute value. Returning a falsey value will result in the attribute being omitted for the iframe.
$iframestring
The HTML iframe tag to be filtered.
$contextstring
Additional context about how the function was called or where the iframe tag is.

Where this hook fires · 1

  • wp-includes/media.php:2499wp_iframe_tag_add_loading_attr()

Source code

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	 *	 * @param string|bool $value   The `loading` attribute value. Returning a falsey value will result in	 *                             the attribute being omitted for the iframe.	 * @param string      $iframe  The HTML `iframe` tag to be filtered.	 * @param string      $context Additional context about how the function was called or where the iframe tag is.	 */	$value = apply_filters( 'wp_iframe_tag_add_loading_attr', $value, $iframe, $context ); 	if ( $value ) {		if ( ! in_array( $value, array( 'lazy', 'eager' ), true ) ) {			$value = 'lazy';		}

Changelog

Introduced in 5.7.0. Unchanged from 6.7.7 through 7.1.0.

  1. 6.7.7
  2. 6.8.8
  3. 6.9.7
  4. 7.0.4
  5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

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Generated from the wordpress-develop 7.1.0 tag, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.
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