[wp-trac] [WordPress Trac] #33311: TB_window spinner should probably disappear when loading is done

[WordPress Trac]

#33311: TB_window spinner should probably disappear when loading is done
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 Reporter:  niklasbr     |       Owner:
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  Plugins      |     Version:  4.2.4
 Severity:  normal       |  Resolution:
 Keywords:               |     Focuses:  ui, javascript, administration,
                         |  performance
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Comment (by afercia):

 @niklasbr could you check if removing `box-shadow` set on the `#TB_window`
 helps a bit Firefox? It does for me, reducing the repainting to just the
 spinner 20px x 20px area. It doesn't completely solve the problem and
 won't help with other browsers though.

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Ticket URL: <https://core.trac.wordpress.org/ticket/33311#comment:4>
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