Title: Browser Cache not cleaned
Last modified: July 13, 2022

---

# Browser Cache not cleaned

 *  Resolved [laserstore](https://wordpress.org/support/users/laserstore/)
 * (@laserstore)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/browser-cache-not-cleaned/)
 * Hi!
    If I make any changes to the site, regardless of what they are, after clearing
   the page cache and the cloudflare cache, it is not updated in the client’s browser.
   This only happens if you update by pressing F5. The problem is that visitors 
   who already have their cache stored can’t see updates if they don’t refresh their
   browser. When the cache is cleared, this change should become immediate, even
   for visitors who already have the cache. I’ve already enabled the Clear full 
   cache when post/page is updated option and even if I activate a plugin that changes
   the design, nothing is updated if I don’t press F5. Looking at the browser header,
   the information hummingbird-cache: Served appears even after changing the theme
   completely, the person who has already visited the site finds the old theme. 
   I installed a plugin called “prevent browser cache” to try to force clean the
   browser, but that didn’t happen. Is there anything I can do to make this cache
   clear? I use NGINX + Apache + Plesk Thank You!

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

 *  [Kris – WPMU DEV Support](https://wordpress.org/support/users/wpmudevsupport13/)
 * (@wpmudevsupport13)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/browser-cache-not-cleaned/#post-15824251)
 * Hi [@laserstore](https://wordpress.org/support/users/laserstore/)
 * I hope you are doing good today.
 * Clearing caches don’t “automatically” reload pages in visitors’ browsers. even
   if you clear all, visitors who are already on site will need to reload the page
   and that’s completely normal.
 * Could you share a link to the plugin you use called “prevent browser cache” to
   see what this plugin does in real?
 * Kind Regards,
    Kris
 *  Thread Starter [laserstore](https://wordpress.org/support/users/laserstore/)
 * (@laserstore)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/browser-cache-not-cleaned/#post-15825049)
 * hi! [@wpmudevsupport13](https://wordpress.org/support/users/wpmudevsupport13/)
   thank you for your response.
    The link of the plugin is here: [https://wordpress.org/plugins/prevent-browser-caching/](https://wordpress.org/plugins/prevent-browser-caching/)
   HG is very fast, an excellent caching system. but see, I tested other cache plugins
   and when I clear the cache and click on any link on the page, it reloads a new
   cache version, on HB it doesn’t. This mentioned plugin changes the version of
   the files to force a new request from the browsers. Anyway, if a big refresh 
   is made to the site and the client doesn’t refresh his browser he won’t see it
   until the cache expires as I understand it. As I said above, not even changing
   an entire theme did he update the page. It’s strange because most visitors don’t
   refresh pages normally. This is the point I don’t understand. Using the “prevent
   browser cache” plugin seems to work as long as it is active before caching. Thanks!
    -  This reply was modified 3 years, 11 months ago by [laserstore](https://wordpress.org/support/users/laserstore/).
 *  Plugin Support [Imran – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support9/)
 * (@wpmudev-support9)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/browser-cache-not-cleaned/#post-15829293)
 * Hello [@laserstore](https://wordpress.org/support/users/laserstore/) !
 * When using Hummingbird’s Asset Optimisation it will automatically detect changes
   in files and will generate a new random name/hash for the file, which is similar
   to what the mentioned plugin does and works in the same way to cause the browser
   to download the new file.
 * This may sometimes not be triggered as it relies on the mechanisms built into
   WordPress – for example, if using a page builder which doesn’t trigger standard
   events when saving/updating, there’s no way to detect the changes automatically(
   running this in the background is not feasible on most hosts).
 * However, please check in Hummingbird >> Caching >> Settings if you have File 
   Change Detection enabled and set to Automatic.
 * Please also check if clearing the cache in Hummingbird >> Asset Optimisation 
   section helps here.
 * Best regards,
    Pawel
 *  Thread Starter [laserstore](https://wordpress.org/support/users/laserstore/)
 * (@laserstore)
 * [3 years, 11 months ago](https://wordpress.org/support/topic/browser-cache-not-cleaned/#post-15829509)
 * [@wpmudev-support9](https://wordpress.org/support/users/wpmudev-support9/) thank
   you very much! In addition to the excellent support, you have the best plugins.

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

The topic ‘Browser Cache not cleaned’ is closed to new replies.

 * ![](https://ps.w.org/hummingbird-performance/assets/icon-256x256.gif?rev=2633221)
 * [Hummingbird Performance - Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN](https://wordpress.org/plugins/hummingbird-performance/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/hummingbird-performance/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/hummingbird-performance/)
 * [Active Topics](https://wordpress.org/support/plugin/hummingbird-performance/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/hummingbird-performance/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/hummingbird-performance/reviews/)

 * 4 replies
 * 3 participants
 * Last reply from: [laserstore](https://wordpress.org/support/users/laserstore/)
 * Last activity: [3 years, 11 months ago](https://wordpress.org/support/topic/browser-cache-not-cleaned/#post-15829509)
 * Status: resolved