cccms/app/controllers/shared_previews_controller.rb, branch master

Fix shared preview redirecting to admin for an ordinary new draft

2026-07-13T15:09:45Z

superseded/currently_public used published_at presence as a proxy for page-row relevance, but published_at is carried forward onto every new draft descended from previously-published content (Page#clone_attributes_from, Node#save_draft!) -- so it read true for any draft on an already-published node, whether or not that specific draft had ever gone live itself. Compare draft_id/head_id identity directly instead; no timestamp involved. A stale (superseded) link now redirects to the live public page rather than an admin URL an anonymous holder can't reach anyway.

Fix shared preview links breaking after a second publish

2026-07-06T11:52:28Z

A token's page could stop being node.head_id (superseded by a newer draft) while still being published_at.present? - the old check only compared against the current head, so a superseded page fell through to direct rendering instead of redirecting, serving a stale frozen snapshot indefinitely instead of the current live content. Also handles scheduled publishing correctly: a page can be head_id but not yet public? (published_at in the future) - that case must still render directly, not redirect into a 404 on the not-yet-live public URL.

Add public preview links for drafts

2026-07-06T04:09:21Z

Lets editors share a draft with people outside the admin system, via a random per-page token rather than an enumerable id - /preview/. shared_previews#show is intentionally unauthenticated. Redirects to the real public URL once the page is published. Surfaced on nodes#show (Admin Preview + Public Preview, next to Public Link) as generate/revoke buttons.