[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:  reviewing
 Priority:  normal            |   Milestone:  4.2
Component:  Customize         |     Version:  3.4
 Severity:  normal            |  Resolution:
 Keywords:  needs-patch       |     Focuses:  ui, javascript
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Comment (by afercia):

 I'd check the spinner image used as background, I suspect this is not just
 an IE11 issue but it happens in all browsers depending on the hardware. If
 you have a powerful machine with a powerful GPU you won't probably notice
 performance issues, but on old machines without a GPU the spinner is
 always there.. spinning even if not visible. See screenshot, Chrome on an
 old machine: CPU at 97% is not just a "peak", it is always at 97% :)

 [[Image(https://cldup.com/2OjcRKZ8D6.png)]]

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Ticket URL: <https://core.trac.wordpress.org/ticket/31196#comment:20>
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