indexedDB and caches not isolated between proxied websites

[ruochenjia]

I did a site data security test in my browser console, localStorage and sessionStorage are isolated between proxied websites, but indexedDB and caches are not. The await caches.keys(); code in a proxied website returns exactly the same as the code in the root domain.

[e9x]

Maybe we can prefix the key with the domain origin like in stomp:
https://github.com/e9x/stomp-rewrite/blob/fe1de8170fe057bbdc5ddaf2ed1e44c54187f0dd/src/inject/modules/IndexedDB.ts#L13

caches will take longer to implement because there isn't any sort of reference/tried and true method.