<!DOCTYPE html>
<meta charset="utf-8">
<title>HTML Test: tabIndex getter return value for frames</title>
<link rel="help" href="https://html.spec.whatwg.org/multipage/interaction.html#dom-tabindex">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<!-- <frame> elements are harder to test than the rest so they get their own file -->

<body>

<script>
"use strict";
test(() => {
  const frame = document.createElement("frame");
  assert_equals(frame.tabI