grid-order-with-iframe.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:
- /shadow-dom/focus-navigation/reading-flow/tentative/grid-order-with-iframe.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>CSS Display: reading-flow with value grid-order on iframe</title>

<link rel="help" href="https://drafts.csswg.org/css-display-4/#reading-flow">

<link rel="author" title="Di Zhang" href="mailto:dizhangg@chromium.org">

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

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

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

<script src="/resources/testdriver-vendor.js"></script>

<script src="/resources/testdriver-actions.js"></script>

<script src='../../resources/shadow-dom.js'></script>

<script src="../../resources/focus-utils.js"></script>

<style>

.wrapper {

  display: grid;

  reading-flow: grid-order;

</style>

<div class="test-case" data-expect="start,frame2/B,frame1/A,end"

      data-description="Grid items are iframes.">

  <button id="start">Item Start</button>

  <div class="wrapper">

    <iframe id="frame1" style="order: 2" srcdoc="<button id=A>A</button>"></iframe>

    <iframe id="frame2" style="order: 1" srcdoc="<button id=B>B</button>"></iframe>

  </div>

  <button id="end">Item End</button>

</div>

<script>

window.onload = runFocusTestCases;

</script>