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“headers already sent”?

{name}
RankRank

Total Posts: 45

Joined 2013-06-24

PM

 

I just noticed this odd error.  It happened only on one day (14 times at that…) but has not happened since Apr 10.

“Cannot modify header information - headers already sent by (output started at /wp-content/themes/onyx/header.php:2)
/wp-includes/pluggable.php”

I installed the WP Error Fix plugin to track WP errors on 8 different sites but http://asiapacificgmi.com/ was the only site that generated this error message.  We have second site running the Onyx theme but it has generated a different error message/different day.  Will post that one separately.

{name}
RankRankRankRank

Total Posts: 3667

Joined 2011-04-27

PM

 

It’s difficult to say without the full error message. It could be the level of error reporting settings or something as simple as this:
http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F

{name}
RankRank

Total Posts: 45

Joined 2013-06-24

PM

 

Huh, how odd.  It was a missing “?>” at the end of that file.  Thanks Casey, not sure how I missed that FAQ.