Storage Access API

Modern Web browsers partition the access to cookies and website data for privacy reasons. Some applications—for example certain single sign-on systems—need to overcome that limitation. The Storage Access API will provide a way to do that.

The Storage Access API provides a way for embedded, cross-origin content to gain unrestricted access to storage that it would normally only have access to in a first-party context (we refer to this as an origin’s first-party storage).
— MDN

• Introducing Storage Access API
• The Storage Access API Draft
  • https://github.com/privacycg/storage-access
• [MDN] Storage Access API
• [caniuse] hasStorageAccess
• [caniuse] requestStorageAccess