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<!DOCTYPE html>
<html>
<head>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>

<script>
// this is a crashtest, just getting to the end is a pass, fullscreen
// doesn't work in crashtests though not sure why -->
SimpleTest.waitForExplicitFinish();

SimpleTest.requestFlakyTimeout("crashtest sensitive to timing");

function begin() {
  SimpleTest.waitForFocus(begin2);
}

function begin2() {
  SpecialPowers.pushPrefEnv({
    "set":[["full-screen-api.allow-trusted-requests-only", false]]
  }, startTest);
}

window.addEventListener("load", begin);

const func_0 = async function(arg0) {
  //SpecialPowers.wrap(document).notifyUserGestureActivation();
  await arg0.originalTarget.requestFullscreen()
  arg0.originalTarget.ariaValueText = "a"
}

async function startTest() {
  let a = document.createElementNS("http://www.w3.org/1999/xhtml", "canvas")
  document.documentElement.appendChild(a)
  document.addEventListener("DOMAttrModified", func_0, { })
  let b = document.createElementNS("http://www.w3.org/1999/xhtml", "canvas")
  document.documentElement.appendChild(b)
  b.setAttribute("class", "x")
  //SpecialPowers.wrap(document).notifyUserGestureActivation();
  await b.mozRequestFullScreen()
  let c = document.createElementNS("http://www.w3.org/1999/xhtml", "slot")
  document.documentElement.appendChild(c)
  c.setAttribute("class", "x")
  b.inert = true
  setTimeout(async () => {
    b.setAttribute("title", "a")
  }, 200)
  a.ariaSort = "descending"
  setTimeout(finishup, 400);
}
async function finishup() {
  await new Promise(resolve => requestAnimationFrame(() => requestAnimationFrame(resolve)));
  await document.exitFullscreen();
  SimpleTest.finish();
}
</script>
</html>