<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Today's deep dive into #activitypub]]></title><description><![CDATA[<p>Today's deep dive into <a href="https://mastodon.social/tags/activitypub" rel="tag">#<span>activitypub</span></a></p><p><a href="https://mastodon.social/tags/selfhosting" rel="tag">#<span>selfhosting</span></a> a <a href="https://mastodon.social/tags/pixelfed" rel="tag">#<span>pixelfed</span></a> instance, I send a Follow request to a selfhosted <a href="https://mastodon.social/tags/wordpress" rel="tag">#<span>wordpress</span></a> blog with AP plugin. The returned Accept Follow payload gets processed by InboxWorker where it just fizzles.</p><p>I then send a Follow request to an account hosted on mastodon.social. Returned Accept gets processed by InboxValidator instead, then on to ActivityHandler and down the FollowPipeline as expected.</p><p>Only message difference is <a href="https://mastodon.social/tags/mastodon" rel="tag">#<span>mastodon</span></a> adds a 'username' field.</p><p>Bug?</p>]]></description><link>https://bb.devnull.land/topic/db33d909-0a24-43bc-91bd-095421c37136/today-s-deep-dive-into-activitypub</link><generator>RSS for Node</generator><lastBuildDate>Fri, 17 Jul 2026 15:35:48 GMT</lastBuildDate><atom:link href="https://bb.devnull.land/topic/db33d909-0a24-43bc-91bd-095421c37136.rss" rel="self" type="application/rss+xml"/><pubDate>Fri, 07 Nov 2025 18:05:57 GMT</pubDate><ttl>60</ttl></channel></rss>