Using Selfoss with PHP 8
curl -X POST 'https://mysite/nickfeed/mark/230130?username=...&password=...' returns {"success":true} and the article is correctly marked as read.
selfoss.entriesPage.markEntryRead(103678, true) in the browser console returns undefined. And doesn't change the article to read.
I haven't done any customisation of user.js, user.css, or similar. I have config.ini carried across from my selfoss 2.18 installation. I have (for this subsite) turned off all Content-Security-Protection in nginx so that shouldn't be blocking any scripts or inline code.