Title: Browser caching
Last modified: May 17, 2017

---

# Browser caching

 *  Resolved [ADBL](https://wordpress.org/support/users/adbl/)
 * (@adbl)
 * [9 years ago](https://wordpress.org/support/topic/browser-caching-6/)
 * Hi there —
 * Thanks a lot for making this plugin available.
 * On this WP Engine hosted site (if that matters), I’m getting PSI error about 
   lack of browser caching on a couple of dozen files, mostly images, but also one
   Autoptimize file (/wp-content/cache/autoptimize/js/autoptimize_10ba2bf799fca5eaaf62f17cb1150cf7.
   js) plus analytics.js and linkid.js.
 * I went through the forum and couldn’t find a relevant issue (mostly external 
   links it seems).
 * Any idea? TIA.
 * — ADBL

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [9 years ago](https://wordpress.org/support/topic/browser-caching-6/#post-9141859)
 * well, for the AO-file you could deactivate the “serve as static file”-option,
   in which case the CSS/ JS are served with a long time-to-live by PHP?
 * hope this helps,
    frank
 *  Thread Starter [ADBL](https://wordpress.org/support/users/adbl/)
 * (@adbl)
 * [9 years ago](https://wordpress.org/support/topic/browser-caching-6/#post-9142372)
 * Ok, will try that, thanks.
 * If I disable AO, I’m not getting any browser caching errors. Any idea what that
   may be, or what I could try (for other files)?
 * — ADBL
 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [9 years ago](https://wordpress.org/support/topic/browser-caching-6/#post-9142394)
 * > If I disable AO, I’m not getting any browser caching errors
 * that’s weird, as AO does not make any change to those other files. one of those
   GPSI flukes maybe?
 * > Any idea what that may be, or what I could try (for other files)
 * for the locally hosted files you could change your .htaccess (if on Apache), 
   [this plugin](https://wordpress.org/plugins/browser-caching-with-htaccess/) makes
   that easier. if on another webserver you might have to do some web-searching.
 * for files hosted on a 3rd party system (e.g. google, facebook, …) there’s nothing
   much you can do I’m afraid.
 *  Thread Starter [ADBL](https://wordpress.org/support/users/adbl/)
 * (@adbl)
 * [8 years, 12 months ago](https://wordpress.org/support/topic/browser-caching-6/#post-9143732)
 * Well, it appears I was testing within the WP Engine Staging environment. I installed
   the plugin on the Live site and no problem.
 * Sorry and thank you again.
 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [8 years, 12 months ago](https://wordpress.org/support/topic/browser-caching-6/#post-9143822)
 * thanks for the feedback [@adbl](https://wordpress.org/support/users/adbl/)!
 * have a nice day,
    frank

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Browser caching’ is closed to new replies.

 * ![](https://ps.w.org/autoptimize/assets/icon-256X256.png?rev=2211608)
 * [Autoptimize](https://wordpress.org/plugins/autoptimize/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/autoptimize/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/autoptimize/)
 * [Active Topics](https://wordpress.org/support/plugin/autoptimize/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/autoptimize/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/autoptimize/reviews/)

## Tags

 * [browser caching](https://wordpress.org/support/topic-tag/browser-caching/)
 * [cache](https://wordpress.org/support/topic-tag/cache/)

 * 5 replies
 * 2 participants
 * Last reply from: [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * Last activity: [8 years, 12 months ago](https://wordpress.org/support/topic/browser-caching-6/#post-9143822)
 * Status: resolved