testing/web-platform/tests/html/browsers/browsing-the-web/navigating-across-documents/resources/child-navigates-parent-cross-origin-inner.html


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<!doctype html>
<script>
const params = new URL(window.location).searchParams;
const property = params.get("property");

try {
  if (property === null) {
    parent.location = "foo";
  } else if (property === "reload") {
    parent.location.reload();
  } else if (property === "replace") {
    parent.location.replace("foo");
  } else {
    parent.location[property] = "foo";
  }
  parent.parent.postMessage("success", "*");
} catch (e) {
  parent.parent.postMessage(`error: ${e.name}`, "*");
}
</script>