task/CDD 1379 page previews#3077
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I've made lots of comments but this is looking really good! Worked nicely on my local machine 🙂
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Enable page previews to the configured frontend URL with set embargo date
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Description
CDD-1379 - Page Previews
Depends Upon: Front End branch: task/CDD-1379-page-previews (please pull the latest)
Date: 2026-02-27
Ticket: https://ukhsa.atlassian.net/browse/CDD-1379?search_id=055fe61d-bee9-48d9-80bc-ffb0f1c26b76&referrer=quick-find
Authors: Jean-Pierre Fouche
Impact: Affects all pages - broad testing required
Testing: Comprehensive unit tests supplied. UAT needed.
Summary
Allow editors of headless composite pages to click a Preview button that immediately redirects them to the external frontend application, rather than opening the built-in Wagtail iframe preview. Preview URLs include a short-lived signed token so the frontend can safely fetch draft content from the CMS.
Additionally, allow users to select to "Time Travel" by selecting a virtual date in order to preview otherwise embargoed data.
... Continued in changelog/2026-02-27/CDD-1379.page-previews.md
Fixes #CDD-1379
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