[wp-trac] [WordPress Trac] #18525: zlib.output_compression "on" in server conflicts with autoupdate

[WordPress Trac]

#18525: zlib.output_compression "on" in server conflicts with autoupdate
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 Reporter:  avidre                  |       Owner:  (none)
     Type:  defect (bug)            |      Status:  reopened
 Priority:  normal                  |   Milestone:
Component:  Bootstrap/Load          |     Version:  3.2.1
 Severity:  normal                  |  Resolution:
 Keywords:  has-patch dev-feedback  |     Focuses:
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Changes (by skorasaurus):

 * status:  closed => reopened
 * resolution:  wontfix =>


Comment:

 I have reopened this ticket.
 Upon updating to 5.1, I have a message at the bottom of all pages of some
 of my WP installations
 stating:

 {{{
 "Notice: ob_end_flush(): failed to send buffer of zlib output compression
 (0) in /path/to/my/install/wp-includes/functions.php on line 4212"
 }}}

 Although this error is different than the original ticket, my error was
 described in [https://core.trac.wordpress.org/ticket/22430 Ticket 22430]
 and Ticket 22340 was designated as a duplicate of this ticket.

 In addition to having 5.1 installed, this notice only appears if:
 'zlib.output_compression', 'ON' in the server's php configuration (I've
 tested this across php 7.1 apache and php 7.2 and ngnix)
 'WP_DEBUG' must be set to true in your wp-config.php.

 I've been able to specifically isolate that all 3 characteristics must
 occur for the message to appear.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/18525#comment:28>
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