[wp-trac] [WordPress Trac] #63396: Warning messages appear in UI the Appearance Editor when we activate Gutenberg

[WordPress Trac]

#63396: Warning messages appear in UI the Appearance Editor when we activate
Gutenberg
--------------------------+-----------------------------
 Reporter:  amitbhosale   |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Editor        |    Version:
 Severity:  normal        |   Keywords:
  Focuses:                |
--------------------------+-----------------------------
 Got one Warning message in the Twenty Twenty-Five theme while opening in
 Appearance>Editor
 I've activated Guteneberg Plugin and got the above error
 WordPress Version - 6.8.1
 PHP Version - 8.2
 WordPress Studio

 Screenshot :

 Warning:  Cannot modify header information - headers already sent by
 (output started at /var/www/html/wp-
 content/plugins/gutenberg/lib/compat/wordpress-6.8/site-editor.php:30) in
 /var/www/html/wp-includes/functions.php
 2:31
 Warning:  Cannot modify header information - headers already sent by
 (output started at /var/www/html/wp-
 content/plugins/gutenberg/lib/compat/wordpress-6.8.1/site-editor.php:30)
 in /var/www/html/wp-includes/functions.php
 Warning:  Cannot modify header information - headers already sent by
 (output started at /var/www/html/wp-
 content/plugins/gutenberg/lib/compat/wordpress-6.8/site-editor.php:30) in
 /var/www/html/wp-admin/admin-header.php

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Ticket URL: <https://core.trac.wordpress.org/ticket/63396>
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