[wp-trac] [WordPress Trac] #37240: Remove schemes from dns-prefetch resource hint outputs

[WordPress Trac]

#37240: Remove schemes from dns-prefetch resource hint outputs
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 Reporter:  niallkennedy                |       Owner:  voldemortensen
     Type:  defect (bug)                |      Status:  reviewing
 Priority:  normal                      |   Milestone:  4.6
Component:  General                     |     Version:  trunk
 Severity:  normal                      |  Resolution:
 Keywords:  has-patch needs-unit-tests  |     Focuses:  performance
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Comment (by peterwilsoncc):

 In [attachment:37240.2.diff]:

 * minor shuffling to apply array_unique following tidyup
 * unit tests to ensure equivalent resources are combined for dns-prefetch
 * replaced the `\r\n` with `\n` because it's not required

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Ticket URL: <https://core.trac.wordpress.org/ticket/37240#comment:7>
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