> I searched for queryUsageAndQuota and found … nothing. No documentation, no code example. No way of figuring out what the first argument should be. Umm... fi

> I searched for queryUsageAndQuota and found … nothing. No documentation, no code example. No way of figuring out what the first argument should be. Umm... first few hits both on DDG _and_ Google point to https://developer.chrome.com/apps/offline_storage#managing_quota https://developer.chrome.com/apps/offline_storage#managing_q... which contains documentation _and_ code examples