[wp-trac] [WordPress Trac] #21905: Undefined index notices on removal of theme support for custom header or background

[WordPress Trac]

#21905: Undefined index notices on removal of theme support for custom header or
background
-----------------------------+--------------------------
 Reporter:  obenland         |       Type:  defect (bug)
   Status:  new              |   Priority:  normal
Milestone:  Awaiting Review  |  Component:  Themes
  Version:  3.4              |   Severity:  normal
 Keywords:  has-patch        |
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 `_remove_theme_support()` assumes that the `$custom_image_header` and
 `$custom_background` globals are set, which they are not always. Same goes
 for the optional `'wp-head-callback'` argument for `add_theme_support()`.

 Introduced in [20212]. See
 [http://themes.trac.wordpress.org/ticket/9199#comment:31 bug report for
 Twenty Twelve on Themes Trac].

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Ticket URL: <http://core.trac.wordpress.org/ticket/21905>
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