[wp-trac] [WordPress Trac] #27913: $this->default_headers; is not set as an array

[WordPress Trac]

#27913: $this->default_headers; is not set as an array
----------------------------+-----------------------------
 Reporter:  grapplerulrich  |      Owner:
     Type:  defect (bug)    |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  Themes          |    Version:  3.9
 Severity:  normal          |   Keywords:
  Focuses:                  |
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 I get this error in the customizer(wp-admin/customize.php)

 {{{
 Warning: Invalid argument supplied for foreach() in /wp-admin/custom-
 header.php on line 1248

 Warning: array_merge(): Argument #2 is not an array in /wp-admin/custom-
 header.php on line 1268
 }}}

 I came across this bug in [http://wordpress.org/extend/themes/responsive
 Responsive] and was able to replicate it in TwentyTwelve with a minor code
 change.

 This error arrises when a default image is set for `add_theme_support(
 'custom-header' );`

 Change `'default-image'          => '',` to `'default-image'          =>
 get_template_directory_uri() . '/inc/default-image.png',` in /wp-
 content/themes/twentytwelve/inc/custom-header.php line 26 to replicate.

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Ticket URL: <https://core.trac.wordpress.org/ticket/27913>
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