Title: Mod Headers Error
Last modified: November 16, 2020

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# Mod Headers Error

 *  [nevets23](https://wordpress.org/support/users/nevets23/)
 * (@nevets23)
 * [5 years, 6 months ago](https://wordpress.org/support/topic/mod-headers-error/)
 * Hi,
 * I have webp express installed on my site, and keep getting the following error:
   _It seems your server setup does not support headers in .htaccess. You should
   either fix this (install mod\_headers) or deactivate the “Enable direct redirection
   to existing converted images?” option. Otherwise the Vary:Accept header will 
   not be added and this can result in problems for users behind proxy servers (
   ie used in larger companies)_
 * My host is wpengine, and they have added the requiste code to nginx. To that 
   end, everything appears to be working and I am passing the live test on both “
   Enable direct redirection to existing converted images?” and “Enable redirection
   to converter?” I am also using maxcdn through wp engine, and maxcdn has turned
   on their webp switch, maxcdn isn’t the issue for the error.
 * As a result, it seems that the error isn’t accurate/is a false positive. If that
   is the case, I will just ignore it, but I want to make sure this isn’t going 
   to cause a problem. Also, do I need both “Enable direct redirection to existing
   converted images?” and “Enable redirection to converter?” turned on or should
   I only have one selected?
 * If you could shed some light, I would greatly appreciate it.
 * Thanks,
 * Steven
 * With that being said, I

The topic ‘Mod Headers Error’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [nevets23](https://wordpress.org/support/users/nevets23/)
 * Last activity: [5 years, 6 months ago](https://wordpress.org/support/topic/mod-headers-error/)
 * Status: not resolved