Title: Header error wp-includes/pluggable.php on line 1178
Last modified: August 22, 2016

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# Header error wp-includes/pluggable.php on line 1178

 *  [PMyers21](https://wordpress.org/support/users/pmyers21/)
 * (@pmyers21)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/header-error-wp-includespluggablephp-on-line-1178/)
 * Im getting this error….
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/petmas5/public_html/index.php:6) in /home/petmas5/public_html/wp-includes/
   pluggable.php on line 1178
 * ….on a website im working on. Its affecting the shopping cart (adding, keeping
   items in cart) the other pages are not effected, just the cart pages.
 * Any idea on how to fix this?

Viewing 1 replies (of 1 total)

 *  Moderator [Jose Castaneda](https://wordpress.org/support/users/jcastaneda/)
 * (@jcastaneda)
 * THEME COFFEE MONKEY
 * [11 years, 3 months ago](https://wordpress.org/support/topic/header-error-wp-includespluggablephp-on-line-1178/#post-5801736)
 * Have you tried disabling _all_ plugins, switching to a bundled theme like Twenty
   Fourteen|Fifteen?

Viewing 1 replies (of 1 total)

The topic ‘Header error wp-includes/pluggable.php on line 1178’ is closed to new
replies.

## Tags

 * [header error](https://wordpress.org/support/topic-tag/header-error/)
 * [pluggable](https://wordpress.org/support/topic-tag/pluggable/)
 * [shopping cart error](https://wordpress.org/support/topic-tag/shopping-cart-error/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [Jose Castaneda](https://wordpress.org/support/users/jcastaneda/)
 * Last activity: [11 years, 3 months ago](https://wordpress.org/support/topic/header-error-wp-includespluggablephp-on-line-1178/#post-5801736)
 * Status: not resolved

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