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IndexedDB Basic
Store and retrieve data from IndexedDB
What you will learn
- Reset IndexedDB between tests via indexedDB.deleteDatabase — leaked data survives even page reload
- All operations are async via request.onsuccess/onerror — wrap in promises for awaitable test code
- Test quota boundary: fill DB past 50 % of disk and assert QuotaExceededError — never OOM silently
Opening database...
