[wp-trac] [WordPress Trac] #30251: Customizer inconsistent contextual behavior

[WordPress Trac]

#30251: Customizer inconsistent contextual behavior
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 Reporter:  dgwyer        |       Owner:  ocean90
     Type:  defect (bug)  |      Status:  reviewing
 Priority:  normal        |   Milestone:  4.1
Component:  Customize     |     Version:  trunk
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:  javascript
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Comment (by westonruter):

 Replying to [comment:5 dgwyer]:
 > That seems to fix the issue on initial customizer load.
 >
 > I came across another issue just now when using 'is_page' as the
 'active_callback' value. This is nothing to do with your patch though as
 it happens regardless of whether the patch is applied or not.

 OK, the problem is that `$wp_customize` is passed as the first argument to
 the `active_callback`. The `is_page` function expects a page ID or string
 slug. So what you should do instead is something to the effect of:

 {{{
     'active_callback' => function () { return is_page(); }
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/30251#comment:6>
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