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Retain live snapshots while revalidating #140

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rockachopa merged 1 commits from timmy/139-stale-while-revalidate-live-snapshot into main 2026-08-06 21:33:48 +00:00
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rockachopa commented 2026-08-06 21:33:09 +00:00
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Closes #139

Outcome

  • retains the last successful live snapshot for an eight-second freshness window
  • serves recent data immediately while one cancellation-safe background refresh revalidates stale state
  • exposes freshness metadata and announces revalidation in the dashboard
  • removes acknowledged notifications immediately and prevents an in-flight stale refresh from restoring them
  • preserves cold-start timeout/503 behavior and Cache-Control: no-store

Verification

  • python3 -m pytest -q — 122 passed
  • node --check frontend/context-poller.js
  • rendered dashboard includes mobile viewport metadata and revalidation status
Closes #139 ## Outcome - retains the last successful live snapshot for an eight-second freshness window - serves recent data immediately while one cancellation-safe background refresh revalidates stale state - exposes freshness metadata and announces revalidation in the dashboard - removes acknowledged notifications immediately and prevents an in-flight stale refresh from restoring them - preserves cold-start timeout/503 behavior and `Cache-Control: no-store` ## Verification - `python3 -m pytest -q` — 122 passed - `node --check frontend/context-poller.js` - rendered dashboard includes mobile viewport metadata and revalidation status
rockachopa added 1 commit 2026-08-06 21:33:10 +00:00
feat: retain live snapshots while revalidating (#139)
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rockachopa merged commit cafc062b9f into main 2026-08-06 21:33:48 +00:00
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Reference: stackchain/stackchain-dashboard#140