apply_filters( 'wp_resource_hints', array $urls, string $relation_type )

Filters domains and URLs for resource hints of relation type.



(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).


(string) The relation type the URLs are printed for, e.g. 'preconnect' or 'prerender'.

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File: wp-includes/general-template.php

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Version Description
4.7.0 The $urls parameter accepts arrays of specific HTML attributes as its child elements.
4.6.0 Introduced.

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