about-blank-cannot-host.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /portals/about-blank-cannot-host.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script>

promise_test(async (t) => {

  assert_implements("HTMLPortalElement" in self);

  let hostWindow = window.open();

  assert_equals(hostWindow.location.href, "about:blank");

  let portal = hostWindow.document.createElement("portal");

  portal.src = "resources/simple-portal.html";

  hostWindow.document.body.appendChild(portal);

  await promise_rejects_dom(t, "InvalidStateError", hostWindow.DOMException, portal.activate());

}, "about:blank cannot host a portal");

</script>