[wp-trac] [WordPress Trac] #34292: Support for DNS Prefetching & Prerender

[WordPress Trac]

#34292: Support for DNS Prefetching & Prerender
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 Reporter:  bhubbard                  |       Owner:
     Type:  feature request           |      Status:  new
 Priority:  normal                    |   Milestone:  4.6
Component:  Script Loader             |     Version:
 Severity:  normal                    |  Resolution:
 Keywords:  has-patch has-unit-tests  |     Focuses:  performance
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Comment (by swissspidy):

 Replying to [comment:9 voldemortensen]:
 > This patch still applies cleanly and looks good to me (just need to
 update the @since). I'd like to see this considered for 4.6.

 That's awesome! Happy to work more on this.

 Some notes:

 * The patch is for DNS prefetching only, without prerender. If we do this,
 we should probably add both
 * Is a filter enough for this, or do we need `add_*`/ `remove_*` helper
 functions? (I don't think we need them)
 * Is `array_unique()` enough? IIRC, Jetpack has stricter rules for the
 added URLs

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Ticket URL: <https://core.trac.wordpress.org/ticket/34292#comment:10>
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