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

Parameters

$urlsarray

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

  Source

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

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  Changelog

  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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