[wp-trac] [WordPress Trac] #38558: Customizer assigns invalid values to header_image_data theme mod during preview

[WordPress Trac]

#38558: Customizer assigns invalid values to header_image_data theme mod during
preview
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 Reporter:  bradyvercher  |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Customize     |     Version:  3.9
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:
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Changes (by bradyvercher):

 * keywords:   => has-patch


Comment:

 All the data needed for previewing appears to be available in the
 Customizer, so instead of passing unexpected values into theme mods,
 [attachment:38558.diff] mimics the format used in
 `Custom_Header_Image::set_header_image()` when saving the theme mods.

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Ticket URL: <https://core.trac.wordpress.org/ticket/38558#comment:1>
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