[wp-trac] [WordPress Trac] #31196: Loading indicators for the Customizer preview

[WordPress Trac]

#31196: Loading indicators for the Customizer preview
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 Reporter:  celloexpressions            |       Owner:
     Type:  enhancement                 |      Status:  new
 Priority:  normal                      |   Milestone:  Future Release
Component:  Customize                   |     Version:  3.4
 Severity:  normal                      |  Resolution:
 Keywords:  good-first-bug needs-patch  |     Focuses:  ui, javascript
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Comment (by westonruter):

 In [attachment:31196.2.diff], I also add a spinner to appear before the
 preview iframe loads for the first time. Patches are also added to this
 PR: https://github.com/xwp/wordpress-develop/pull/68/files

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Ticket URL: <https://core.trac.wordpress.org/ticket/31196#comment:5>
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