[wp-trac] [WordPress Trac] #37390: Twenty Thirteen: masonry widgets layout is not updated in the customizer

[WordPress Trac]

#37390: Twenty Thirteen: masonry widgets layout is not updated in the customizer
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 Reporter:  celloexpressions  |      Owner:
     Type:  defect (bug)      |     Status:  new
 Priority:  normal            |  Milestone:  4.6
Component:  Bundled Theme     |    Version:  4.5
 Severity:  normal            |   Keywords:  needs-patch
  Focuses:  javascript        |
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 `wp.customize.selectiveRefresh` is not defined where the theme's
 `functions.js` checks for it, preventing the masonry footer widgets layout
 from updating properly when widgets are added, deleted, or reordered. This
 broke sometime between when the change was made to the theme and 4.5.3,
 and is likely due to the sequence of scripts loading.

 See https://wordpress.slack.com/archives/core-customize/p1468779925000003,
 which has a fix from @westonruter. We also need to update the code in
 https://make.wordpress.org/core/2016/03/22/implementing-selective-refresh-
 support-for-widgets/ as themes may still be copying that.

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Ticket URL: <https://core.trac.wordpress.org/ticket/37390>
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