[wp-trac] [WordPress Trac] #53488: The `action` passed to jQuery.ajax is possibly `null`

[WordPress Trac]

#53488: The `action` passed to jQuery.ajax is possibly `null`
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 Reporter:  ixkaito       |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  5.8
Component:  Widgets       |     Version:
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:  javascript
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Comment (by noisysocks):

 Why is `data` null? Perhaps `@wordpress/customize-widgets` is doing
 something wrong cc. @kevin940726.

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Ticket URL: <https://core.trac.wordpress.org/ticket/53488#comment:2>
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