[wp-trac] [WordPress Trac] #38737: Add selective refresh to new custom header functions

[WordPress Trac]

#38737: Add selective refresh to new custom header functions
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 Reporter:  peterwilsoncc  |       Owner:
     Type:  defect (bug)   |      Status:  new
 Priority:  normal         |   Milestone:  4.7
Component:  Themes         |     Version:  trunk
 Severity:  normal         |  Resolution:
 Keywords:  has-patch      |     Focuses:
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Changes (by bradyvercher):

 * keywords:  needs-patch => has-patch


Comment:

 [attachment:38737.diff] adds selective refresh support for custom headers.
 It:

 * Ensures the container is always present in the Customizer.
 * Sets the transport for `header_image` and `header_image_data` to
 `postMessage` when support for video headers is registered.
 * Updates the default theme implementations.

 The front page restrictions will need to be updated in #38738.

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Ticket URL: <https://core.trac.wordpress.org/ticket/38737#comment:4>
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