[wp-trac] [WordPress Trac] #65161: Give an error message when a non-image is uploaded for site icon

[WordPress Trac]

#65161: Give an error message when a non-image is uploaded for site icon
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 Reporter:  Presskopp     |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Media         |     Version:
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:
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Comment (by intenzi):

 Thankyou, I went with `window.alert()` as the media selection modal
 overlays on top and thus existing notification systems like the
 `wp.Customize.notification` one would get hidden if utilised. This appears
 to be the correct way to display the error message to the user. Always
 open to any suggestions if you know of a way it can be improved!

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Ticket URL: <https://core.trac.wordpress.org/ticket/65161#comment:5>
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