[wp-trac] [WordPress Trac] #42438: Add support for preload links (similar to resource hints)

[WordPress Trac]

#42438: Add support for preload links (similar to resource hints)
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 Reporter:  nico23                      |       Owner:  swissspidy
     Type:  defect (bug)                |      Status:  assigned
 Priority:  normal                      |   Milestone:  Future Release
Component:  Script Loader               |     Version:  4.9
 Severity:  normal                      |  Resolution:
 Keywords:  needs-unit-tests has-patch  |     Focuses:
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Comment (by furi3r):

 Hello folks, I've been working on a PR creating ''wp_preload_links'' (
 covers ''imagesrcset'' and ''imagesizes'' too ), also added unit testing
 to it. cc @swissspidy @spacedmonkey

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Ticket URL: <https://core.trac.wordpress.org/ticket/42438#comment:20>
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