[wp-trac] [WordPress Trac] #34456: Add add_theme_support('title-tag') to all default WordPress themes as wp_title() is deprecated since WordPress 4.4

[WordPress Trac]

#34456: Add add_theme_support('title-tag') to all default WordPress themes as
wp_title() is deprecated since WordPress 4.4
-------------------------------------------------+-------------------------
 Reporter:  Nikschavan                           |       Owner:  obenland
     Type:  defect (bug)                         |      Status:  accepted
 Priority:  normal                               |   Milestone:  4.4
Component:  Bundled Theme                        |     Version:  trunk
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-screenshots needs-     |     Focuses:
  testing                                        |
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Changes (by obenland):

 * keywords:  has-patch dev-feedback has-screenshots needs-testing => has-
     patch has-screenshots needs-testing


Comment:

 Hi @Nikschavan, thanks for the ticket and the patch!

 Some feedback:
 The compat function would need an actual prefix and should be defined
 outside of `twentythirteen_setup()`. We should also do a positive check
 (`if ( function_exists() )` rather than `if ( ! function_exists() )`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/34456#comment:7>
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