Hi, this is another issue: Content negotiation doesn’t work with browser.pub, because it always fires a ModSecurity rule on my webhosting. Nevertheless, the Mastodon-Instance I use for my personal account (graz.social) seems to be able to negotiate content. I am also able to inspect content locally from my Linux desktop with the App “Fedinspect” (https://flathub.org/de/apps/org.andypiper.Fedinspect).
I am not sure if the ModSecurity rules on our Webhosting are the causing the other issues in our ActivityPub Setup, or if these are separate issues.
I think I have exactly the same problem on our blog, https://atheistisch.at. Notifications for Replies are sent via E-Mail, but no comments are shown. I also activated WP_Debug and spotted a reply I sent from my Mastodon account in the Inbox, but it didn’t show up as comment.
