Image attachment to comments.app widget is broken. Image is not attached to comment upon upload ends, server returns "Server error".
On a website that has Discussbot (comments.app) comments widget enabled, login, press on the "Attach a file" button, select image file (jpg, gif or png) and upload it.
Image uploaded (HTTP status 200 returned on upload POST request), but server returns "Server error" JSON response. Image is not attached to comment body.
It does not matter which image size or format is used.
Image attached to comment body upon upload completed.
Chrome 100, Opera 85, Firefox 78