Simple set of tests to check support for Atomics in the latest version of Safari.
Test is live on this site: https://atomics-browser-test.web.app/
The site has been set up with the following headers:
Cross-Origin-Opener-Policy: "same-origin"
Cross-Origin-Embedder-Policy: "require-corp"
Cross-Origin-Resource-Policy: "same-origin"
To ensure it's a cross-origin-isolated context for the tests.