[wp-trac] [WordPress Trac] #47120: Media modals: Upload errors and field information are not associated with their control

[WordPress Trac]

#47120: Media modals: Upload errors and field information are not associated with
their control
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 Reporter:  afercia                              |       Owner:  antpb
     Type:  defect (bug)                         |      Status:  assigned
 Priority:  normal                               |   Milestone:  5.7
Component:  Media                                |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  wpcampus-report has-patch dev-       |     Focuses:  ui,
  feedback                                       |  accessibility
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Comment (by joedolson):

 The change is the addition of `aria-live="assertive"` on the container
 that receives the error, as well as the addition of `tabindex='-1'` on the
 parent container.

 I can see that the tabindex is added, but yet the container doesn't
 receive focus & the message isn't spoken on the first error, only on
 subsequent errors. My theory is that some backbone refresh is occurring
 around the assignment of focus that disrupts this, but I just can't see
 what's happening.

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Ticket URL: <https://core.trac.wordpress.org/ticket/47120#comment:57>
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