These tests communicate via postMessage with a page on a
different domain to grant access, upon user permission, to a
cross-domain shared storage area on that domain.
It is hoped that the public API (referenced in the last tests to run) might become accepted as a web standard.
To run these tests, you must agree to the prompts.
In Chrome, you must also ensure that "Block third-party cookies" in chrome://settings/content/cookies is turned off.