Intent to Prototype: Shared Storage API
Cammie Smith Barnes
Shared Storage API
Contact emails
cam...@chromium.org, jka...@chromium.org, ale...@chromium.org, yao...@chromium.org
Explainer
https://github.com/pythagoraskitty/shared-storage
Specification
None
Summary
Allows for unpartitioned storage that may only be read in a secure environment with carefully constructed output gates. This API intends to support many of the use cases of third-party cookies without permitting cross-site user tracking.
Blink component
Blink>Storage>SharedStorage
Motivation
This is a new API that intentionally allows for cross-site storage in a web in which all other storage has been partitioned by top-level site. To prevent cross-site tracking of users, data in Shared Storage may only be read in a secure environment with carefully constructed, private output gates. This supports a number of cross-site storage use cases in a privacy-safe way.
Initial public proposal
None
TAG review
TAG review status
Pending
Risks
Interoperability and Compatibility
Gecko: No signal
WebKit: No signal
Web developers: No signals
Is this feature fully tested by web-platform-tests?
Yes
Flag name
SharedStorageService
Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1218540
Launch bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1218535