Title: Jetpack header conflict
Last modified: October 14, 2016

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# Jetpack header conflict

 *  [SilkeH](https://wordpress.org/support/users/silkeh/)
 * (@silkeh)
 * [9 years, 10 months ago](https://wordpress.org/support/topic/jetpack-header-conflict/)
 * hello,
 * Since i’ve updated to wordpress 4.3.1 i’ve had a conflict with the headers i 
   believe…
 * when i go to the jetpack dashboard i get the following error displaying several
   times at the top of the page followed by some jetpack content
 * `Warning: Cannot modify header information - headers already sent by (output 
   started at /home/poiaustraliacom/public_html/wp-admin/includes/template.php:1969)
   in /home/poiaustraliacom/public_html/wp-includes/rest-api.php on line 359`
 * Following error is from google chromes console
 *     ```
       https://poi-australia.com.au/wp-json/jetpack/v4/site Failed to load resource: the server responded with a status of 400 ()
   
       {"code":"invalid_user_permission_view_admin","message":"You do not have the correct user permissions to perform this action.\n\t\t\tPlease contact your site admin if you think this is a mistake.","data":{"status":401}}
       ```
   
 * Is there a fix for this??

Viewing 1 replies (of 1 total)

 *  Plugin Author [Jeremy Herve](https://wordpress.org/support/users/jeherve/)
 * (@jeherve)
 * Jetpack Mechanic 🚀
 * [9 years, 10 months ago](https://wordpress.org/support/topic/jetpack-header-conflict/#post-8299722)
 * Sorry for all the trouble.
 * Could you let me know what other plugins are currently active on your site? Could
   you also try to deactivate each one of the other plugins that rely on the WP 
   REST API, and let me know if one of them appears to be conflicting with Jetpack?
 * Thanks!

Viewing 1 replies (of 1 total)

The topic ‘Jetpack header conflict’ is closed to new replies.

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## Tags

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

 * 1 reply
 * 2 participants
 * Last reply from: [Jeremy Herve](https://wordpress.org/support/users/jeherve/)
 * Last activity: [9 years, 10 months ago](https://wordpress.org/support/topic/jetpack-header-conflict/#post-8299722)
 * Status: not resolved