[wp-trac] [WordPress Trac] #36638: Detect broken URLs in the editor

[WordPress Trac]

#36638: Detect broken URLs in the editor
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 Reporter:  iseulde                         |       Owner:  azaozz
     Type:  enhancement                     |      Status:  assigned
 Priority:  normal                          |   Milestone:  4.6
Component:  Editor                          |     Version:
 Severity:  normal                          |  Resolution:
 Keywords:  needs-unit-tests needs-testing  |     Focuses:  ui
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Comment (by jipmoors):

 Seeing the message "Not found, HTTP error 404." as a return value for an
 invalid page request, think we can improve upon this a bit.

 Suggestions:
 `The target page does not exist.`
 `The page could not be found.`

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Ticket URL: <https://core.trac.wordpress.org/ticket/36638#comment:23>
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