[wp-trac] [WordPress Trac] #46910: Allow wp_die to called after html has started output

[WordPress Trac]

#46910: Allow wp_die to called after html has started output
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 Reporter:  spacedmonkey  |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  trunk
 Severity:  normal        |   Keywords:  needs-patch servehappy
  Focuses:                |
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 Currently if wp_die is called in either front end or in the cms, after
 html has started to render html, it makes an extremely broken looking
 page. This is because the default wp_die will output another html / body
 tag and css.

 The wp_die function could somehow detect that html render had started, by
 saying checking an action has been run or a constraint was set, then
 instead of outputting the html start tags and would instead just output
 Javascript. This Javascript could display either an overlay dialog or even
 an a pure Javascript based alert displaying the message.

 This feature would be specially useful for the fatal error protection
 feature in WordPress 5.2.

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Ticket URL: <https://core.trac.wordpress.org/ticket/46910>
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