WordPress 5.x does not save when this plugin activated

Hello,
Ever since upgrading to WordPress 5x I am unable to use this plugin.
When activated, it is impossible to save a post. Autosave also fails.

403 errors are generated in:
https://www.domain.com/wp-json/wp/v2/posts/12965/autosaves?_locale=user
https://www.domain.com/wp-json/wp/v2/media/22873?context=edit&_locale=user
https://www.domain.com/wp-json/jetpack/v4/jitm?

I hope this plugin is not abandoned, because it’s my favorite among all the ones I use! Would miss it.

Plugin: WordPress SuperSonic with CloudFlare

• This topic was modified 5 years, 10 months ago by MTO.