[wp-trac] [WordPress Trac] #35559: Featured Image disappear when viewing from customizer

[WordPress Trac]

#35559: Featured Image disappear when viewing from customizer
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 Reporter:  halftones     |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Customize     |     Version:  4.4
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:  javascript
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Changes (by dd32):

 * version:  4.4.1 => 4.4


Comment:

 I've been able to duplicate this issue in Safari.

 Things to note:
  * Safari-only, Chrome not affected
  * Reproduced it with a image 3443 × 1967
  * Could not reproduce it with an image 1200 × 800
  * All sizes & srcset is correct
  * The `img` element in twentyfifteen is shown as 0px tall by Safari
 inspector
  * Double clicking the `srcset` attribute in Safari's inspector, and then
 clicking out of it (so no changes are made) causes the image to come back
 into view.

 This looks like some kind of safari srcset bug that's triggered by the
 customizer somehow, I'm unable to cause it to happen without the
 customizer.

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Ticket URL: <https://core.trac.wordpress.org/ticket/35559#comment:19>
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