[horde] PHP errors after webmail 1.2 upgrade

[Elliot Anders]

Mike,
thanks for the lead.  I've been able to pin this down to the compose  
window, and only when you have "Compose messages in a separate  
window?" checked.
There seem to be no adverse effects in the window itself so I guess I  
won't worry about it.  Dimp has a similar issue in the composition  
window where it errors with the following:

[Tue Sep 30 20:21:45 2008] [error] [client 10.0.2.254] PHP Warning:   
Cannot modify header information - headers already sent in Unknown on  
line 0, referer: https://webmail.marlboro.edu/dimp/
[Tue Sep 30 20:21:45 2008] [error] [client 10.0.2.254] PHP Warning:   
Cannot modify header information - headers already sent in Unknown on  
line 0, referer: https://webmail.marlboro.edu/dimp/

Again no ill effects for the user.  Deleting cache files and  
restarting seem to have no effect whatsoever.
-Elliot

On Sep 30, 2008, at 6:57 PM, Michael Rubinsky wrote:

> Someone else had a very similar problem. Looks like this is/was  
> caused by a stale session cache. Try restarting your webserver, or  
> clearing out any old session files etc...
>
> Quoting Elliot Anders <elliot at marlboro.edu>:
>
>> I'm seeing the following 3 errors since upgrading to webmail 1.2.   
>> I'm also not seeing any data in the horde_datatree table (there's  
>> never been any and things have generally worked fine.)  Is anyone  
>> else seeing these or have an idea as to what I might do to fix them?
>>
>> [Tue Sep 30 13:17:59 2008] [error] [client 10.1.5.24] PHP Warning:   
>> gzuncompress() [<a  
>> href='function.gzuncompress'>function.gzuncompress</a>]: data error  
>> in /var/www/webmail/horde-webmail-1.2/lib/Horde/Serialize.php on  
>> line 349, referer: https://webmail.marlboro.edu/services/portal/sidebar.php
>> [Tue Sep 30 13:17:59 2008] [error] [client 10.1.5.24] PHP Warning:   
>> register_shutdown_function() [<a href='function.register-shutdown- 
>> function'>function.register-shutdown-function</a>]: Invalid  
>> shutdown callback 'PEAR_Error::_store' passed in /var/www/webmail/ 
>> horde-webmail-1.2/imp/lib/IMAP/Tree.php on line 220, referer: https://webmail.marlboro.edu/services/portal/sidebar.php
>> [Tue Sep 30 13:17:59 2008] [error] [client 10.1.5.24] PHP Fatal  
>> error:  Call to undefined method PEAR_Error::build() in /var/www/ 
>> webmail/horde-webmail-1.2/imp/lib/Block/tree_folders.php on line  
>> 65, referer: https://webmail.marlboro.edu/services/portal/sidebar.php
>>
>>