[wp-trac] [WordPress Trac] #56566: Fatal error when WP_REST_Server::dispatch() returns WP_Error

[WordPress Trac]

#56566: Fatal error when WP_REST_Server::dispatch() returns WP_Error
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 Reporter:  DaveFX        |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  REST API      |    Version:  6.0.2
 Severity:  major         |   Keywords:
  Focuses:  rest-api      |
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 We are getting a Fatal error in our site when the
 WP_REST_Server::embed_links() method calls the WP_REST_Server::dispatch()
 method, and this latter one returns a WP_Error object.

 After this, the method calls the filter rest_post_dispatch, and the two
 hooked functions (rest_send_allow_header and rest_filter_response_fields)
 will generate a fatal error if the filtered value is a WP_Error instead of
 a WP_Rest_Response.

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Ticket URL: <https://core.trac.wordpress.org/ticket/56566>
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