[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:  enhancement    |      Status:  new
 Priority:  normal         |   Milestone:  Awaiting Review
Component:  Script Loader  |     Version:  trunk
 Severity:  normal         |  Resolution:
 Keywords:                 |     Focuses:  performance
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Comment (by bhubbard):

 I think having it in core would be very useful, as it can prevent
 developers from loading duplicates as @moonomo mentioned.

 Example , say I have a theme and plugin, and they both want to load and
 prefetch twitter bootstrap or fontawesome from bootstrapcdn.com. If the
 both manually print to wp_head, then it would show up twice, having a
 filter would prevent this. This would also make it easier for developers
 to say write a function that disables prefetch for a specific page, etc,
 regardless of what was set to prefetch from another theme or plugin
 developer, assuming they all switch to using this new filter.

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Ticket URL: <https://core.trac.wordpress.org/ticket/34292#comment:3>
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