File: document-domain-nested.window.js

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test(() => {
  // As the initial:about frame document reuses the origin of this document, setting document.domain
  // from this document, resulting in a origin mutation, has no effect on these documents being able
  // to reach each other, as they share the same "physical" origin.
  document.body.appendChild(document.createElement('iframe'));
  document.domain = document.domain;
  // Ensure we can still access the child browsing context
  assert_equals(window[0].document.body.localName, "body");
}, "Initial about:blank frame and document.domain");