400 Errors on update post

[asousacf]

Confirmation

• My issue isn't already found on the issue tracker.
• I have replicated my issue using the latest version of the plugin and it is still present.

WordPress version

6.8.2

Cloudflare-WordPress version

4.12.8

PHP version

8.3

Expected result

The plugin not giving 400 errors on post updates

Actual result

We are getting 400 BAD Request when updating posts

Steps to reproduce

When we update a post on Wordpress we do see 400 errors on our PHP logs:

; PHP message: [Cloudflare] ERROR: [CLIENT API] Array

(

[type] => response

[reason] => Bad Request

[code] => 400

)

; PHP message: [Cloudflare] ERROR: Bad Request" while reading response header from upstream, client: xxx.xxx.xxx.xxx, server: www.example.com, request: "POST /wp-admin/post.php HTTP/2.0", upstream: "fastcgi://unix:/run/php/php-fpm.sock:", host: "www.example.com", referrer: "https://www.example.com/wp-admin/post.php?post=177789&action=edit"

Additional factoids

No response

References

No response

[remkus]

Thanks for reporting this. We’re currently working on updating the plugin, and improving PHP (8.3) compatibility is part of that effort. This issue is on our radar and will be addressed in the upcoming updates. Appreciate your patience.

[rta-kklints]

Perhaps as part of the wish list could add:

• a list of additional pages to purge from cache, e.g. if there's a custom page like /news/ which feeds off refreshed articles
• support for multi-sites (if applicable)