Title: Post-update issues
Last modified: March 7, 2023

---

# Post-update issues

 *  Resolved [hbk747](https://wordpress.org/support/users/hbk747/)
 * (@hbk747)
 * [3 years, 3 months ago](https://wordpress.org/support/topic/post-update-issues-2/)
 * Hello,
 * Hope you are well.
 * I think after updating Autoptimize, there have been some issues. I use cloudways
   safe updates to update my website, and the last 2-3 times that I have done this,
   I have noticed that the homepage is not displayed correctly but the other pages
   work fine. When I deactivate autoptimize, everything is fine.
 * I checked dev tools when the issue was happening and found this “paradigmshift.
   com.pk/wp-content/cache/autoptimize/css/autoptimize_dc4bcd8….css because its 
   MIME type (‘text/html’) is not a supported stylesheet MIME type, and strict MIME
   checking is enabled.”
 * Would appreciate your help. The plugin is disabled right now since this is the
   time most traffic is coming.
 * P.S. the only other change I made ws turning varnish off (server side cache)
 * Warm regards
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fpost-update-issues-2%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [3 years, 3 months ago](https://wordpress.org/support/topic/post-update-issues-2/#post-16536036)
 * hey hbk747;
    typcically this happens when there is HTML in a page cache that 
   contains references to an autoptimized file that has been removed from cache.
   clearing all page caches you (or your host or 3rd party service such as cloudflare)
   might have should fix the problem. additionally when “aggregate CSS” is active
   you migth want to make sure the “404 fallback” option (on AO’s main settings 
   tab, near the bottom) is active.
 * hope this helps,
    frank
 *  Thread Starter [hbk747](https://wordpress.org/support/users/hbk747/)
 * (@hbk747)
 * [3 years, 2 months ago](https://wordpress.org/support/topic/post-update-issues-2/#post-16555872)
 * [@optimizingmatters](https://wordpress.org/support/users/optimizingmatters/)
 * Hey, yes clearing all cache did help but not sure why this has started happening
   all of a sudden. It would not before. I just did another update and I see this
   in the dev tools “DevTools failed to load source map: Could not load content 
   for [https://www.paradigmshift.com.pk/wp-content/cache/autoptimize/css/frontend.min.css.map](https://www.paradigmshift.com.pk/wp-content/cache/autoptimize/css/frontend.min.css.map):
   HTTP error: status code 410, net::ERR_HTTP_RESPONSE_CODE_FAILURE”
 * Is this the same thing or something else?
 * Warm regards
 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [3 years, 2 months ago](https://wordpress.org/support/topic/post-update-issues-2/#post-16555981)
 * source maps are for developer usage and are only requested when you have developer
   tools open, so not relevant 🙂

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Post-update issues’ 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/)

 * 3 replies
 * 2 participants
 * Last reply from: [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * Last activity: [3 years, 2 months ago](https://wordpress.org/support/topic/post-update-issues-2/#post-16555981)
 * Status: resolved