Site A
Demo of Storage Partitioning.
Explanation:
The demo uses two sites: site A and site B.
- When you visit site A in the top-level context it sets data using various storage methods.
- Site B embeds a page from site A and that embed attempts to read the storage options set previously.
- When site A is embedded on site B, it doesn't have access to that data when the storage is partitioned and so the reads fail.
- The demo uses the success or failure of each read to show whether data is partitioned.
For now, you can turn off storage partitioning in Chrome by setting the
chrome://flags/#third-party-storage-partitioning Chrome flag to disabled
to confirm this fails the partitoning test.
You can also test other browsers in the same way to see their partitioning status.