Title: cannot modify header information via FB
Last modified: August 21, 2016

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# cannot modify header information via FB

 *  [ellebillias](https://wordpress.org/support/users/ellebillias/)
 * (@ellebillias)
 * [12 years, 4 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-via-fb/)
 * when opening the link to my site homepage through the iphone facebook app – ie.
   trying to login to the site using the inbuilt browser, the login/register to 
   allow access works ok but instead of being redirected to homepage I receive this
   error message:
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/XXXXX/plugins/facebookall/helpers/facebookall_process.php:12) in /home/
   XXXXX/wp-includes/pluggable.php on line 896
 * —————————————————–
 * In my Facebook App I have the app domain set to the same domain as the homepage,
   Website with Facebook Login is set to my site URL, App on Facebook is set for
   canvas URL & Secure – main home URL with trailing slash.
 * Any idea why it’s unable to load the home page? This is an unmodified install
   of the plugin.
 * [http://wordpress.org/plugins/facebookall/](http://wordpress.org/plugins/facebookall/)

The topic ‘cannot modify header information via FB’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [ellebillias](https://wordpress.org/support/users/ellebillias/)
 * Last activity: [12 years, 4 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-via-fb/)
 * Status: not resolved