Title: Unknown modifier warning on pages with HTTPS
Last modified: August 21, 2016

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# Unknown modifier warning on pages with HTTPS

 *  [captaincrispy](https://wordpress.org/support/users/captaincrispy/)
 * (@captaincrispy)
 * [12 years, 12 months ago](https://wordpress.org/support/topic/unknown-modifier-warning-on-pages-with-https/)
 * Hello,
 * Plug-in works great with Event Espresso. The issue we are having is a warning
   message on the top of the browser. This is the message that displays above the
   header. Any suggestions?
 * Warning: preg_match() [function.preg-match]: Unknown modifier ‘/’ in /home/impairme/
   public_html/wp-content/plugins/wordpress-https/lib/WordPressHTTPS/Module/DomainMapping.
   php on line 43
 * Warning: preg_match() [function.preg-match]: Unknown modifier ‘/’ in /home/impairme/
   public_html/wp-content/plugins/wordpress-https/lib/WordPressHTTPS/Module/DomainMapping.
   php on line 43
 * Thanks!
 * Brandon
 * [http://wordpress.org/extend/plugins/wordpress-https/](http://wordpress.org/extend/plugins/wordpress-https/)

The topic ‘Unknown modifier warning on pages with HTTPS’ is closed to new replies.

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 * [Support Threads](https://wordpress.org/support/plugin/wordpress-https/)
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## Tags

 * [HTTPS](https://wordpress.org/support/topic-tag/https/)
 * [unknown modifier](https://wordpress.org/support/topic-tag/unknown-modifier/)

 * 0 replies
 * 1 participant
 * Last reply from: [captaincrispy](https://wordpress.org/support/users/captaincrispy/)
 * Last activity: [12 years, 12 months ago](https://wordpress.org/support/topic/unknown-modifier-warning-on-pages-with-https/)
 * Status: not resolved