[whatwg/storage] Add a nonce (ephemeral token) to the Storage Key (Issue #183)

kyraseevers created an issue (whatwg/storage#183)

### What is the issue with the Storage Standard?

There is a PR in progress to update the Storage Key to reflect the changes made during client-side storage partitioning: https://github.com/whatwg/storage/pull/182. That PR updates the key to consist of <origin, top-level site, and cross-site ancestry>. Chrome's implementation of the Storage Key also includes a nonce (of type UnguessableToken) for storage in ephemeral contexts like credentialless iframes. I believe that Firefox and Safari do not implement the nonce, so I am choosing instead to file an issue for future reference.

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Received on Tuesday, 24 June 2025 18:03:08 UTC