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<!DOCTYPE html>
<html class="reftest-wait">
<head>
  <script>
    window.addEventListener("load", async () => {
      let a = document.createElement("iframe")
      document.documentElement.appendChild(a)
      let b = await a.contentWindow.clientInformation.storage.getDirectory()
      let c = await b.getFileHandle("80e2d2c3-0712-4ccd-94b5-e2dd1732ea09", {"create": true})
      let d = await c.createWritable({ })
      setTimeout(async () => {
        document.documentElement.removeAttribute("class");
        await d.truncate(1);
      }, 1000)
      document.replaceChildren(document.documentElement, document.documentElement)
    })
  </script>
</head>
</html>