wp_resource_hints │ filter-hook │ WP 4.6.0

Filters domains and URLs for resource hints of the given relation type.

Usage

add_filter( 'wp_resource_hints', 'wp_kama_resource_hints_filter', 10, 2 );

/**
 * Function for `wp_resource_hints` filter-hook.
 * 
 * @param array  $urls          Array of resources and their attributes, or URLs to print for resource hints.
 * @param string $relation_type The relation type the URLs are printed for. One of 'dns-prefetch', 'preconnect', 'prefetch', or 'prerender'.
 *
 * @return array
 */
function wp_kama_resource_hints_filter( $urls, $relation_type ){

	// filter...
	return $urls;
}

$urls(array)

Array of resources and their attributes, or URLs to print for resource hints.

• ...$0(array|string)
  Array of resource attributes, or a URL string.

  • href(string)
    URL to include in resource hints. Required.

  • as(string)
    How the browser should treat the resource (script, style, image, document, etc).

  • crossorigin(string)
    Indicates the CORS policy of the specified resource.

  • pr(float)
    Expected probability that the resource hint will be used.

  • type(string)
    Type of the resource (text/html, text/css, etc).

$relation_type(string)

The relation type the URLs are printed for. One of 'dns-prefetch', 'preconnect', 'prefetch', or 'prerender'.

Changelog

Where the hook is called

$urls = apply_filters( 'wp_resource_hints', $urls, $relation_type );

Where the hook is used in WordPress