ag( false );
		}

		return $loading_attrs;
	}

	// Lazy-loading and `fetchpriority="high"` are mutually exclusive.
	if ( isset( $loading_attrs['loading'] ) && 'lazy' === $loading_attrs['loading'] ) {
		return $loading_attrs;
	}

	if ( ! wp_high_priority_element_flag() ) {
		return $loading_attrs;
	}

	/**
	 * Filters the minimum square-pixels threshold for an image to be eligible as the high-priority image.
	 *
	 * @since 6.3.0
	 *
	 * @param int $threshold Minimum square-pixels threshold. Default 50000.
	 */
	$wp_min_priority_img_pixels = apply_filters( 'wp_min_priority_img_pixels', 50000 );

	if ( $wp_min_priority_img_pixels <= $attr['width'] * $attr['height'] ) {
		$loading_attrs['fetchpriority'] = 'high';
		wp_high_priority_element_flag( false );
	}

	return $loading_attrs;
}

/**
 * Accesses a flag that indicates if an element is a possible candidate for `fetchpriority='high'`.
 *
 * @since 6.3.0
 * @access private
 *
 * @param bool $value Optional. Used to change the static variable. Default null.
 * @return bool Returns true if high-priority element was marked already, otherwise false.
 */
function wp_high_priority_element_flag( $value = null ) {
	static $high_priority_element = true;

	if ( is_bool( $value ) ) {
		$high_priority_element = $value;
	}

	return $high_priority_element;
}
<br />
<b>Fatal error</b>:  Uncaught Error: Call to undefined function wp_get_audio_extensions() in /home/sportuga/public_html/wp-includes/embed.php:214
Stack trace:
#0 /home/sportuga/public_html/wp-includes/class-wp-hook.php(324): wp_maybe_load_embeds('')
#1 /home/sportuga/public_html/wp-includes/class-wp-hook.php(348): WP_Hook-&gt;apply_filters(NULL, Array)
#2 /home/sportuga/public_html/wp-includes/plugin.php(517): WP_Hook-&gt;do_action(Array)
#3 /home/sportuga/public_html/wp-settings.php(550): do_action('plugins_loaded')
#4 /home/sportuga/public_html/wp-config.php(102): require_once('/home/sportuga/...')
#5 /home/sportuga/public_html/wp-load.php(50): require_once('/home/sportuga/...')
#6 /home/sportuga/public_html/wp-blog-header.php(13): require_once('/home/sportuga/...')
#7 /home/sportuga/public_html/index.php(17): require('/home/sportuga/...')
#8 {main}
  thrown in <b>/home/sportuga/public_html/wp-includes/embed.php</b> on line <b>214</b><br />