[wp-trac] [WordPress Trac] #37387: Resource hinting: Do not preconnect to emoji CDN.

[WordPress Trac]

#37387: Resource hinting: Do not preconnect to emoji CDN.
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 Reporter:  peterwilsoncc                    |       Owner:  ocean90
     Type:  defect (bug)                     |      Status:  closed
 Priority:  normal                           |   Milestone:  4.6
Component:  Script Loader                    |     Version:  4.6
 Severity:  normal                           |  Resolution:  fixed
 Keywords:  good-first-bug has-patch commit  |     Focuses:
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Comment (by audrasjb):

 In [changeset:"53904" 53904]:
 {{{
 #!CommitTicketReference repository="" revision="53904"
 Script Loader: Remove default DNS prefetch entry for s.w.org.

 A default DNS prefetch entry for s.w.org was previously included to save a
 few ms in case an emoji is used that is not supported by the browser. It
 appears this use case doesn't justify a prefetch to s.w.org on every
 WordPress website.

 This changesets removes `emoji_svg_url` prefetch from
 `wp_resource_hints()`. It also updates unit tests in
 `Tests_General_wpResourceHints` by removing
 `test_should_have_defaults_on_frontend()` entirely and removing s.w.org
 prefetch from expected output of ten other test functions.

 Plugin authors can use the `wp_resource_hints` filter if they need to re-
 add the DNS prefetch entry for s.w.org.

 Follow-up to [37920], [38122].

 Props joelhardi, superpoincare, jhabdas, garrett-eclipse, sabernhardt,
 SergeyBiryukov.
 Fixes #40426.
 See #37387.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/37387#comment:15>
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