[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-patch  |     Focuses:
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Comment (by rachelbaker):

 Flagging a url as "bad" when a HEAD request returns a `4xx` response would
 also flag sites that require authentication, and would result in false
 negatives.

 Maybe limit to just `404` or allow a filter to disable.

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Ticket URL: <https://core.trac.wordpress.org/ticket/36638#comment:5>
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