<!DOCTYPE html>
<html lang="en">
<head>
	<title>Test accessibility checker in shadow DOM</title>
</head>
<body>
<header>
	<h1>Test if accessibility checker flags &lt;input&gt;s with &lt;label>s inside shadow DOM</h1>
</header>
<main>
	<div id="container1"></div>
	<script>
		var root = container1.attachShadow( { mode: "open" } );
		var label = document.createElement("label");
		label.setAttribute("for", "foo");
		root.appendChild(label);
		var input = document.createElement("input");
		input.id = "foo";
		ro