Tests that OOPIF CacheStorage can also be can be accessed.
{
caches : [
[0] : {
cacheId : https://devtools.oopif.test:8443/^0https://127.0.0.1|sw-cache-1
cacheName : sw-cache-1
securityOrigin : https://devtools.oopif.test:8443
storageKey : https://devtools.oopif.test:8443/^0https://127.0.0.1
}
]
}