[wp-trac] [WordPress Trac] #52725: WP5.7-RC2-50494 Warning: Cannot modify header information

[WordPress Trac]

#52725: WP5.7-RC2-50494 Warning: Cannot modify header information
-------------------------------+------------------------------
 Reporter:  mitfi              |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Administration     |     Version:  trunk
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:  administration
-------------------------------+------------------------------

Comment (by SergeyBiryukov):

 > `Warning: Cannot modify header information - headers already sent by
 (output started at /.../wp-admin/includes/template.php:2526) in /.../wp-
 includes/pluggable.php on line 1329`
 > `Warning: Cannot modify header information - headers already sent by
 (output started at /.../wp-admin/includes/template.php:2526) in /.../wp-
 includes/pluggable.php on line 1332`

 Just noting that these warnings are caused by calling `wp_redirect()`
 after the output has already started from the `_wp_admin_html_begin()`
 function.

 As noted above, this does not seems specific to WordPress 5.7. A solution
 would be to perform the redirects as soon as possible, before any output.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/52725#comment:4>
WordPress Trac <https://core.trac.wordpress.org/>
WordPress publishing platform