# All plugins not functioning due to CORS error after recent upgrade

**URL:** https://meta.discourse.org/t/all-plugins-not-functioning-due-to-cors-error-after-recent-upgrade/399466
**Category:** Self-hosting
**Tags:** cdn
**Created:** [March 27, 2026, 8:35pm UTC](https://meta.discourse.org/t/all-plugins-not-functioning-due-to-cors-error-after-recent-upgrade/399466 "2026-03-27T20:35:59Z")
**Posts on this page:** 1
**Showing post:** 18

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### Author: ![TomoftheFog](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/tomofthefog/32/467103_2.png) [@TomoftheFog](https://meta.discourse.org/u/TomoftheFog)
#### Post date: [April 6, 2026, 3:28am UTC](https://meta.discourse.org/t/all-plugins-not-functioning-due-to-cors-error-after-recent-upgrade/399466/18 "2026-04-06T03:28:55Z")

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We’ve also found another issue since coming across this problem - some users are not able to see avatar images when using the Preformatted Text markdown button. It tries to load highlight-js and gets an error, saying CORS failed:

 ![image](https://global.discourse-cdn.com/meta/original/4X/d/0/8/d081cd82127966aa6cd312960095d1b86c2cd660.jpeg)

Not sure if this is just at our end, but wanted to make all aware in case it is related.

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