<!DOCTYPE html>
<meta charset="utf-8">
<title>call method</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/channel.sub.js"></script>

<script>
setup({single_test: true})
onload = async () => {
    let remote = await new RemoteGlobal();

    let url = `child_script.html?uuid=${remote.uuid}`;
    win = window.open(url, "_blank", "noopener");

    let result = await remote.call(async (elemId) => {
        return document.g