[wp-trac] [WordPress Trac] #34893: Improve Customizer setting validation model

[WordPress Trac]

#34893: Improve Customizer setting validation model
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 Reporter:  westonruter                          |       Owner:
     Type:  enhancement                          |  westonruter
 Priority:  high                                 |      Status:  accepted
Component:  Customize                            |   Milestone:  4.6
 Severity:  normal                               |     Version:  3.4
 Keywords:  has-patch needs-testing needs-unit-  |  Resolution:
  tests has-screenshots ux-feedback              |     Focuses:  javascript
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Comment (by westonruter):

 Addressed accessibility feedback from @afercia in
 [attachment:34893.8.diff]. Now using `wp.a11y.speak()` for notifications
 added instead of an assertive aria live region for the entire
 notifications container.

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Ticket URL: <https://core.trac.wordpress.org/ticket/34893#comment:47>
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