iframe-append-2.https.html

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This WPT test may be referenced by the following Test IDs:
- /web-locks/crashtests/iframe-append-2.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<iframe id="id_0"></iframe>

<script>

  window.addEventListener("load", () => {

    const iframe = document.getElementById("id_0")

    // Discards the previous document

    document.documentElement.appendChild(iframe)

    const xhr = new XMLHttpRequest()

    // LockManager is created after discarding

    // At this point the new document is not there yet

    iframe.contentWindow.navigator.locks.request("weblock_0", () => {

      xhr.open("GET", "FOOBAR", false)

      xhr.send()

      // Now there is a new document

})

})

</script>