[wp-trac] [WordPress Trac] #37006: Extremely poor customizer performance

[WordPress Trac]

#37006: Extremely poor customizer performance
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 Reporter:  jessecurry    |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Customize     |     Version:  3.9
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by westonruter):

 @jessecurry See also this plugin proposal for adding page-specific
 sidebars that get loaded dynamically: https://github.com/xwp/wp-customize-
 content-widgets

 The problem currently is that all sidebars and all widgets get loaded up
 front. This doesn't scale, and this is something the plugin would fix.

 As for obtaining the page currently in the preview, please refer to the
 Customize Posts plugin to see the approach taken there. This should be
 rolled into core via #36582, but you can use the plugin code for now.

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Ticket URL: <https://core.trac.wordpress.org/ticket/37006#comment:3>
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