Granted origins cause a third-party tracker browsing context to not get
full first-party storage access after successfully calling the storage
access API or a heuristic granting ephemeral access.
For example, after https://tracker.example calls the storage access API
successfully in the third-party context, they embed
https://other-tracker.example, and that load fails because of ETP
restrictions. Here what happens is that https://other-tracker.example
is mistakenly considered the granted origin, and because such a
permission doesn't exist, access is denied.
Differential Revision: https://phabricator.services.mozilla.com/D57493
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extra : moz-landing-system : lando
1676da33c8