[w3c/ServiceWorker] Handle the quota exceeded error globally (#971)

Basically, I want to show a warning message to users when the storage quota for my app is exceeded. Catching the error `QuotaExceededError` on every write operations (`caches.open`, `cache.put`, etc)  is quite painful. How can I handle it globally? Or is there any better approach for this situation?

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https://github.com/w3c/ServiceWorker/issues/971