[wp-trac] [WordPress Trac] #41445: post_parent can prevent media from embedding correctly

[WordPress Trac]

#41445: post_parent can prevent media from embedding correctly
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 Reporter:  loboyle                              |       Owner:
                                                 |  adamsilverstein
     Type:  defect (bug)                         |      Status:  assigned
 Priority:  normal                               |   Milestone:  Future
                                                 |  Release
Component:  REST API                             |     Version:  4.9.4
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch needs-testing dev-         |     Focuses:  rest-api
  feedback needs-unit-tests                      |
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Comment (by danielbachhuber):

 Here's another GitHub issue with prior conversation on the topic:
 https://github.com/WP-API/WP-API/issues/1987#issuecomment-247355568

 Essentially, this is a flaw in WordPress' permissions model for
 attachments. The only way around it is with a meta query (querying to see
 if the attachment is used as `_thumbnail_id` on any posts), but meta
 queries have negative performance implications.

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Ticket URL: <https://core.trac.wordpress.org/ticket/41445#comment:22>
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