BrowserVersionOwn?TypeAs String
Chrome86.0.4240ownobject[object CacheStorage]
Chrome88.0.4291???
Chrome88.0.4292ownobject[object CacheStorage]
Edge86.0.622ownobject[object CacheStorage]
Edge87.0.651???
Edge87.0.658ownobject[object CacheStorage]
Firefox78.0.0???
Firefox79.0.0ownobject[object CacheStorage]
IE7.0.0???
Safari10.1.2???
Safari12.0.0ownobject[object CacheStorage]

PropertiesChromeEdgeFirefoxIESafari
delete 85.0.4183 86.0.622 79.0.0? 12.0.0
has 85.0.4183 86.0.622 79.0.0? 12.0.0
keys 85.0.4183 86.0.622 79.0.0? 12.0.0
match 85.0.4183 86.0.622 79.0.0? 12.0.0
open 85.0.4183 86.0.622 79.0.0? 12.0.0