If you try to load your WordPress blog and you come across this warning (or anything similar), the fix is really easy. The error message should look like this: Warning: Cannot modify header information: headers already sent by: (output started at //home/htdocs/wordpress/wp-config.php:1) in /home/htdocs/wordpress/wp-login.php on line 12 Notice that the error could warn about any file, … Continue reading How to: Fix WordPress Warning: Cannot modify header information →