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fix: send 500 response code on critical errors #10579

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fix: send 500 response code on critical errors #10579

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3280d5b
fix: send 500 response code on critical errors
shivamdev-lgtm Dec 2, 2025
a246dd0
fix: pr reviews
shivamdev-lgtm Dec 4, 2025
de14cfe
fix: remove redundant function_exists check
shivamdev-lgtm Dec 9, 2025
d19b7a3
fix: more PR reviews
shivamdev-lgtm Dec 11, 2025
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13 changes: 13 additions & 0 deletions src/wp-includes/functions.php
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Original file line number Diff line number Diff line change
Expand Up @@ -3886,6 +3886,19 @@ function _default_wp_die_handler( $message, $title = '', $args = array() ) {
$message .= "\n<p><a href='javascript:history.back()'>$back_text</a></p>";
}

// Ensure HTTP 500 status code for critical errors, even if headers were already sent.
$is_critical_error = false;
if ( $message instanceof WP_Error ) {
$is_critical_error = $message->get_error_code();
} elseif ( 'internal_server_error' === $parsed_args['code'] || 500 === $parsed_args['response'] ) {
$is_critical_error = true;
}

if ( $is_critical_error ) {
$parsed_args['response'] = 500;
http_response_code( 500 );
}

if ( ! did_action( 'admin_head' ) ) :
if ( ! headers_sent() ) {
header( "Content-Type: text/html; charset={$parsed_args['charset']}" );
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