Title: Warning: Cannot Modify header information
Last modified: August 20, 2016

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# Warning: Cannot Modify header information

 *  Resolved [heibar](https://wordpress.org/support/users/heibar/)
 * (@heibar)
 * [14 years, 1 month ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-83/)
 * This is a WordPress theme I have modified in Dreamweaver
    When I post it to my
   domain name barbarapedersen.ca this is the message I get. “Warning: Cannot modify
   header information – headers already sent by (output started at /hermes/bosweb/
   web123/b1233/nf.petalpower/public_html/barbarapedersen.ca/index.php:2) in /hermes/
   bosweb/web123/b1233/nf.petalpower/public_html/barbarapedersen.ca/wp-includes/
   functions.php on line 3371”
 * this is what the line 3371 in wp-includes/functions.php is
    “header( ‘Content-
   Type: text/html; charset=utf-8’ );”
 * Any comments or help is much appreciated thanks

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [comediann](https://wordpress.org/support/users/comediann/)
 * (@comediann)
 * [14 years, 1 month ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-83/#post-2657821)
 * [http://www.tech-recipes.com/rx/1489/solve-php-error-cannot-modify-header-information-headers-already-sent/](http://www.tech-recipes.com/rx/1489/solve-php-error-cannot-modify-header-information-headers-already-sent/)
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [14 years, 1 month ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-83/#post-2657823)
 * See [Solving “headers already sent” warnings](http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F).
 *  Thread Starter [heibar](https://wordpress.org/support/users/heibar/)
 * (@heibar)
 * [14 years, 1 month ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-83/#post-2657904)
 * Thank you for the help I copied the custom theme and wp-config.php file
    Uploaded
   a fresh version of wordpress added my custom theme and config file and the problem
   seems to be solved thanks very much

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Warning: Cannot Modify header information’ is closed to new replies.

## Tags

 * [modify header](https://wordpress.org/support/topic-tag/modify-header/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 3 participants
 * Last reply from: [heibar](https://wordpress.org/support/users/heibar/)
 * Last activity: [14 years, 1 month ago](https://wordpress.org/support/topic/warning-cannot-modify-header-information-83/#post-2657904)
 * Status: resolved

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