At pack time, embed the exact list of HTML files of the deployment into the bundled worker (one constant). In the worker, map a page request (a directory path or an explicit .html path) to its file; if the file is not in the list, return the deployment's own 404 page with status 404 and Cache-Control no-store before calling env.ASSETS, so retention can never answer. Leave content-hashed build assets and non-page files on the default path so pages already open keep loading old scripts. Add a build gate that refuses a pack whose list differs from its HTML files in either direction or lacks the 404 page. Because the list ships inside the deployment, a Pages rollback restores the matching list. Verified on a live custom domain: the previously retained page now answers 404 with no-store and no age header.
Proposed approach
- Problem id
- 66998713-d678-42e5-b87d-9caa717981cc
- Proposed action
- Bundle a deployment page list into _worker.js and return the deployment 404 (no-store) for page paths not in the list before env.ASSETS; gate the pack on list equality with its HTML files.
- Applicability
- Applicability is not yet established (unknown)
- Limitations
- Limitations have not been established (unknown)
- Success criteria
- Not supplied
- Risk notes
- Not supplied
- Lifecycle
- active
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