scroll-into-view.https.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:
- /fenced-frame/scroll-into-view.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Test scrollIntoView() inside a fenced frame</title>

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

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

<script src="/common/utils.js"></script>

<script src="/common/dispatcher/dispatcher.js"></script>

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

<body>

<!-- This spacer is used to ensure that the fenced frame will be out of view

     unless a scroll is performed. -->

<div style="height: 2000px;"></div>

<script>

promise_test(async(t) => {

  const fencedframe = await attachFencedFrameContext();

  const start_y_offset = window.pageYOffset;

  await fencedframe.execute(() => {

    // Ensure that any elements created are out of view until a scroll is

    // performed.

    const spacer = document.createElement("div");

    spacer.style = "height: 2000px;";

    document.body.appendChild(spacer);

    const start_fenced_y_offset = window.pageYOffset;

    const button = document.createElement("button");

    document.body.appendChild(button);

    button.scrollIntoView();

    const end_fenced_y_offset = window.pageYOffset;

    assert_not_equals(start_fenced_y_offset, end_fenced_y_offset,

      "The inner page should have scrolled.");

  }, []);

  const end_y_offset = window.pageYOffset;

  assert_equals(start_y_offset, end_y_offset,

      "The outer page should not have scrolled.");

}, 'scrollIntoView() inside a fenced frame should not scroll ancestors');

</script>

</body>