EntryHandler used Article::link, which is deliberately a site-relative
path elsewhere in the app, directly as the Micropub response's
Location URL. Every other post type it returns (notes, bookmarks,
places) already prepends the site URL, so articles were the only case
where clients received a relative Location - iA Writer appears to
treat that as a local file path and fails to open it after posting.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017USyUg8PwuoDcHP8pv5xjy