[wp-trac] [WordPress Trac] #45989: WSODs protection still 500 on REST API request

[WordPress Trac]

#45989: WSODs protection still 500 on REST API request
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 Reporter:  spacedmonkey                        |       Owner:  schlessera
     Type:  defect (bug)                        |      Status:  reopened
 Priority:  normal                              |   Milestone:  5.2
Component:  Bootstrap/Load                      |     Version:  trunk
 Severity:  major                               |  Resolution:
 Keywords:  servehappy needs-testing has-patch  |     Focuses:  multisite
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Comment (by spacedmonkey):

 @TimothyBlynJacobs Good catch on recovery mode not working if header
 already sent. In 45989.7.diff, I fix this issue.

 As for your other feedback, I think it is impossible to display a message
 once the render has started. It is important to know what has already been
 rendered. Some example of page types.
 - XML - RSS feeds
 - JSON - rest api
 - JSONp - Rest api
 - string - ajax request
 - xmlrpc - xmlrpc.
 - html - front / back end.

 There is just no way to know what format to output in. If it is html, you
 dont even know if the body tag has been opened. I don't think this is
 something we can fix in 5.2 / phase 1.Unless I am missing something.

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Ticket URL: <https://core.trac.wordpress.org/ticket/45989#comment:34>
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