Title: Warning Cannoy modify header
Last modified: August 21, 2016

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# Warning Cannoy modify header

 *  [stephendew57](https://wordpress.org/support/users/stephendew639/)
 * (@stephendew639)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/warning-cannoy-modify-header/)
 * I get these errors when I try to register as some one else to see how the process
   works.
 * How can they be fixed?
    Steve
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home2/hbi/public_html/lnodenison.com/wp-content/plugins/stop-spammer-registrations-
   plugin/stop-spammer-registrations.php:337) in /home2/hbi/public_html/lnodenison.
   com/wp-includes/pluggable.php on line 680
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home2/hbi/public_html/lnodenison.com/wp-content/plugins/stop-spammer-registrations-
   plugin/stop-spammer-registrations.php:337) in /home2/hbi/public_html/lnodenison.
   com/wp-includes/pluggable.php on line 681
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home2/hbi/public_html/lnodenison.com/wp-content/plugins/stop-spammer-registrations-
   plugin/stop-spammer-registrations.php:337) in /home2/hbi/public_html/lnodenison.
   com/wp-includes/pluggable.php on line 682
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home2/hbi/public_html/lnodenison.com/wp-content/plugins/stop-spammer-registrations-
   plugin/stop-spammer-registrations.php:337) in /home2/hbi/public_html/lnodenison.
   com/wp-includes/pluggable.php on line 876
 * [http://wordpress.org/extend/plugins/stop-spammer-registrations-plugin/](http://wordpress.org/extend/plugins/stop-spammer-registrations-plugin/)

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Contributor [Keith P. Graham](https://wordpress.org/support/users/kpgraham/)
 * (@kpgraham)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/warning-cannoy-modify-header/#post-3824177)
 * Disable “Use a Red Herring form:” and ” Use JavaScript trap:” by unchecking them.
 * let me know if this works.
 * Keith
 *  Thread Starter [stephendew57](https://wordpress.org/support/users/stephendew639/)
 * (@stephendew639)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/warning-cannoy-modify-header/#post-3824188)
 * hi Keith, it stopped the error, the user was registered, but the email with the
   password was not sent. Any thoughts on that?
 * Steve
 *  Thread Starter [stephendew57](https://wordpress.org/support/users/stephendew639/)
 * (@stephendew639)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/warning-cannoy-modify-header/#post-3824190)
 * Keith, I just the email. So all looks good. I’ll delete the user and try again.
   I also want to a an approve user plugin with this, would that interfere with 
   your plugin?
 * Steve
 *  Plugin Contributor [Keith P. Graham](https://wordpress.org/support/users/kpgraham/)
 * (@kpgraham)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/warning-cannoy-modify-header/#post-3824205)
 * I think that an approve user plugin would not interact with my plugin at all.
   Stop Spammers does not fire if the user is logged in.
 * Keith

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Warning Cannoy modify header’ is closed to new replies.

 * ![](https://ps.w.org/stop-spammer-registrations-plugin/assets/icon-256x256.png?
   rev=3377746)
 * [Stop Spammers Classic](https://wordpress.org/plugins/stop-spammer-registrations-plugin/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/stop-spammer-registrations-plugin/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/stop-spammer-registrations-plugin/)
 * [Active Topics](https://wordpress.org/support/plugin/stop-spammer-registrations-plugin/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/stop-spammer-registrations-plugin/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/stop-spammer-registrations-plugin/reviews/)

 * 4 replies
 * 2 participants
 * Last reply from: [Keith P. Graham](https://wordpress.org/support/users/kpgraham/)
 * Last activity: [12 years, 11 months ago](https://wordpress.org/support/topic/warning-cannoy-modify-header/#post-3824205)
 * Status: not resolved