Title: Browser Cache is Caching wp-admin Pages Last modified: January 16, 2026 --- # Browser Cache is Caching wp-admin Pages * Resolved [jjb100](https://wordpress.org/support/users/jjb100/) * (@jjb100) * [4 months, 3 weeks ago](https://wordpress.org/support/topic/browser-cache-is-caching-wp-admin-php-pages/) * Hello, * We still have the problem that the WP admin pages are cached in the browser. I disabled the browser cache in WP-Optimize two months ago, but the problem persists. * I found a very good description of the problem here – we are struggling with the same issues: [https://wordpress.org/support/topic/wp-optimize-browser-cache-is-caching-wp-admin-php-pages/](https://wordpress.org/support/topic/wp-optimize-browser-cache-is-caching-wp-admin-php-pages/) * Our PHP version is 8.4, so that shouldn’t be the reason for the problems. What is the situation at digikb (@digikb)? Has a solution been found in the meantime? I first reported the problem here: [https://wordpress.org/support/topic/cache-works-exceptionally-well/](https://wordpress.org/support/topic/cache-works-exceptionally-well/) * Any help would be very welcome! - This topic was modified 4 months, 3 weeks ago by [jjb100](https://wordpress.org/support/users/jjb100/). Viewing 5 replies - 1 through 5 (of 5 total) * [digikb](https://wordpress.org/support/users/digikb/) * (@digikb) * [4 months, 3 weeks ago](https://wordpress.org/support/topic/browser-cache-is-caching-wp-admin-php-pages/#post-18788629) * We haven’t had a fix for this, other than a suggestion from WP-Optimize to update our PHP version, however as you say it’s affecting PHP 8.3/8.4 as reported by other users. * We have just disabled the browser caching feature by going into Static File Headers and setting the Browser static file caching headers Expiration time to 0 which disables it. You may need to also clear the cache in WP-Optimize and on your browser and restart to make sure the new cache settings are picked up. Make sure that the website can update .htaccess and any Cache-Control settings are no longer there. * In reality this only has a minor impact on performance in the real world, but in our opinion this is a major bug that should be fixed in the plugin. Backend pages should never be cached. - This reply was modified 4 months, 3 weeks ago by [digikb](https://wordpress.org/support/users/digikb/). * Plugin Support [jbgupdraft](https://wordpress.org/support/users/jbgupdraft/) * (@jbgupdraft) * [4 months, 3 weeks ago](https://wordpress.org/support/topic/browser-cache-is-caching-wp-admin-php-pages/#post-18788639) * Hi [@jjb100](https://wordpress.org/support/users/jjb100/) and [@digikb](https://wordpress.org/support/users/digikb/), * Thanks for bringing this back up! I’m going to report this to our development team to see if they are able to reproduce the issue. * On all of my test sites I haven’t been able to reproduce it yet but I’ll see if a developer can take a look at it, because you’re right the backend pages should not be cached or have new posts overwrite previous posts because of cache! * Thread Starter [jjb100](https://wordpress.org/support/users/jjb100/) * (@jjb100) * [4 months, 2 weeks ago](https://wordpress.org/support/topic/browser-cache-is-caching-wp-admin-php-pages/#post-18791745) * Hello, Yes, that’s indeed a problem that should be fixed. It makes the work very tedious; before every post-processing, you have to remember to update the post first. And it’s also a security issue. * Okay, now I’m wondering what other causes there could be—apart from WP Optimize. Could it somehow be related to an update on WordPress? Could there be interferences? * [digikb](https://wordpress.org/support/users/digikb/) * (@digikb) * [4 months, 2 weeks ago](https://wordpress.org/support/topic/browser-cache-is-caching-wp-admin-php-pages/#post-18791857) * I don’t think its a core issue. Disabling Cache-Control (Static File Headers) stops the issue. It’s not been a problem before. * To do this, browser cache should: - Exclude `.php`, or - Exclude `/wp-admin/`, or - Apply only to static assets (CSS, JS, images). * Plugin Support [jbgupdraft](https://wordpress.org/support/users/jbgupdraft/) * (@jbgupdraft) * [4 months, 1 week ago](https://wordpress.org/support/topic/browser-cache-is-caching-wp-admin-php-pages/#post-18801407) * Hi all, * Just wanted to send out a quick update that our developers have been looking into the issue and working to resolve it in a future release. I’m not sure if they have been able to reproduce the problem yet but they’ve been actively investigating since I reported it to them. * Thanks for your patience as we get this sorted! Viewing 5 replies - 1 through 5 (of 5 total) You must be [logged in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fbrowser-cache-is-caching-wp-admin-php-pages%2F%3Foutput_format%3Dmd&locale=en_US) to reply to this topic. * ![](https://ps.w.org/wp-optimize/assets/icon-256x256.png?rev=1552899) * [WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance](https://wordpress.org/plugins/wp-optimize/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-optimize/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-optimize/) * [Active Topics](https://wordpress.org/support/plugin/wp-optimize/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-optimize/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-optimize/reviews/) ## Tags * [cache](https://wordpress.org/support/topic-tag/cache/) * 5 replies * 5 participants * Last reply from: [jbgupdraft](https://wordpress.org/support/users/jbgupdraft/) * Last activity: [4 months, 1 week ago](https://wordpress.org/support/topic/browser-cache-is-caching-wp-admin-php-pages/#post-18801407) * Status: resolved