<!DOCTYPE html> | |
<script src="/resources/testharness.js"></script> | |
<script src="/resources/testharnessreport.js"></script> | |
<script> | |
promise_test(async t => { | |
let activatePromise = document.createElement('portal').activate(); | |
await promise_rejects(t, 'InvalidStateError', activatePromise); | |
}, "A portal with nothing in it cannot be activated"); | |
</script> |