[wp-trac] [WordPress Trac] #34353: redirect_canonical() – Undefined indexes 'host' and 'scheme'

[WordPress Trac]

#34353: redirect_canonical() – Undefined indexes 'host' and 'scheme'
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 Reporter:  theamila                      |       Owner:  (none)
     Type:  defect (bug)                  |      Status:  reopened
 Priority:  normal                        |   Milestone:  Future Release
Component:  Canonical                     |     Version:  4.3.1
 Severity:  normal                        |  Resolution:
 Keywords:  needs-patch needs-unit-tests  |     Focuses:
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Comment (by Kovah):

 Unfortunately this is still an issue in WP 5.1.1 and currently littering
 our Sentry logs.

 As of 5.1.1, line 504 of /wp/wp-includes/canonical.php is throwing the
 "Undefined index: host" error.
 Corresponding code:


 {{{
     // Ignore differences in host capitalization, as this can lead to
 infinite redirects
     // Only redirect no-www <=> yes-www
 >>> if ( strtolower( $original['host'] ) == strtolower( $redirect['host']
 ) ||
        ( strtolower( $original['host'] ) != 'www.' . strtolower(
 $redirect['host'] ) && 'www.' . strtolower( $original['host'] ) !=
 strtolower( $redirect['host'] ) ) ) {
           $redirect['host'] = $original['host'];
     }
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/34353#comment:18>
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