Title: PHP Notice: Undefined index HTTP_REFERER
Last modified: February 25, 2021

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# PHP Notice: Undefined index HTTP_REFERER

 *  [cabaltc](https://wordpress.org/support/users/cabaltc/)
 * (@cabaltc)
 * [5 years, 3 months ago](https://wordpress.org/support/topic/php-notice-undefined-index-http_referer/)
 * Hi,
 * Plugin is generating tons of PHP Notices with this message:
 * [25-Feb-2021 20:25:03 UTC] PHP Notice: Undefined index: HTTP_REFERER in /davidolier.
   com/wp-content/plugins/wpstudio-login-modal-box/inc/glmb-frontend.php on line
   40
 * Any possible fix on that?
 * Thank you and regards,
 * David

The topic ‘PHP Notice: Undefined index HTTP_REFERER’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [cabaltc](https://wordpress.org/support/users/cabaltc/)
 * Last activity: [5 years, 3 months ago](https://wordpress.org/support/topic/php-notice-undefined-index-http_referer/)
 * Status: not resolved