6.0.0-beta1
7/27/25

[#14459] headers already sent
Summary headers already sent
Queue Horde Base
Queue Version Git master
Type Bug
State No Feedback
Priority 1. Low
Owners
Requester anton.kornexl (at) uni-passau (dot) de
Created 09/06/2016 (3246 days ago)
Due
Updated 10/11/2016 (3211 days ago)
Assigned 09/06/2016 (3246 days ago)
Resolved 09/14/2016 (3238 days ago)
Github Issue Link
Github Pull Request
Milestone
Patch No

History
10/11/2016 09:35:22 AM anton (dot) kornexl (at) uni-passau (dot) de Comment #4 Reply to this comment
I cant produce the error on my test system.
I don't have access to all configured servers and used devices to find 
the cause of the produced errors.

On the production server the error is permanently reported, but i cant 
correlate the error to a specific user/device/server
09/15/2016 05:57:51 AM anton (dot) kornexl (at) uni-passau (dot) de Comment #3 Reply to this comment
i have to install a clone to test and debug the action which produces 
the error.
I will sent feedback then in October
09/14/2016 02:25:16 PM Michael Rubinsky State ⇒ No Feedback
 
09/06/2016 02:02:48 PM Michael Rubinsky Version ⇒ Git master
Queue ⇒ Horde Base
 
09/06/2016 02:02:08 PM Michael Rubinsky Comment #2
Priority ⇒ 1. Low
State ⇒ Feedback
Reply to this comment
You will need to find out what is being sent over the wire. There's 
not much information in that error to go on.

Also, be aware that Horde 5.x hasn't been officially marked as 
supporting PHP 7, though most of the framework libraries have.
09/06/2016 01:26:30 PM anton (dot) kornexl (at) uni-passau (dot) de Comment #1
Priority ⇒ 2. Medium
Type ⇒ Bug
Summary ⇒ headers already sent
Queue ⇒ Horde Framework Packages
Milestone ⇒
Patch ⇒ No
State ⇒ Unconfirmed
Reply to this comment
After Ugrade to Ubuntu 16.04 (with PHP 7.0.8-0ubuntu0.16.04.2)
(Horde (horde) 5.2.11  and  Mail (imp) 6.2.15)
my syslog file is full of the following message:

HORDE: [horde] PHP ERROR: Cannot modify header information - headers 
already sent [pid xxxx on line 0 of "Unknown"]

if i set
$conf['compress_pages'] = false;
in horde/config/config.php
the errors are gone.

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