[wp-trac] [WordPress Trac] #42488: Link field in Image Widget does not report invalidity

[WordPress Trac]

#42488: Link field in Image Widget does not report invalidity
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 Reporter:  westonruter   |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  4.9
Component:  Widgets       |    Version:  4.9
 Severity:  normal        |   Keywords:
  Focuses:                |
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 Reported at https://wordpress.org/support/topic/widgets-displaying-saving/
 by @newb1e:

 > under appearence > widgets I’ve noticed that if you put the image widget
 in a widget area and type in a link without http:// at the beginning, you
 can’t save the widget, but there is no notice what’s going on. Just
 nothing happens.

 There should be some indication of an invalid URL.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42488>
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