Filters domains and URLs for resource preloads.

Parameters

$preload_resourcesarray

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

• ...$0 array
  Array of resource attributes.

  • href string
    URL to include in resource preloads. 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.
  • type string
    Type of the resource (text/html, text/css, etc).
  • media string
    Accepts media types or media queries. Allows responsive preloading.
  • imagesizes string
    Responsive source size to the source Set.
  • imagesrcset string
    Responsive image sources to the source set.
  • fetchpriority string
    Fetchpriority value for the resource.
    

  Source

  $preload_resources = apply_filters( 'wp_preload_resources', array() );
  

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  Changelog

  Version	Description
  6.6.0	Added the $fetchpriority attribute.
  6.1.0	Introduced.

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