File: test_scroll_position_restore_no_bfcache.html

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<!doctype html>
<meta charset="utf-8">
<title>Test for Bug 1269539</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<script>
SimpleTest.waitForExplicitFinish();

let loadCount = 0;
let childWin;
let targetScrollPosition;
function handlePageShow(persisted) {
  ok(typeof persisted == "boolean", "Should get the persisted state from the pageshow event");
  ok(!persisted, "Shouldn't have gotten into the bfcache");
  is(childWin.getComputedStyle(childWin.document.body).color, "rgb(0, 255, 0)", "Sheet should have been applied");
  let scroller = childWin.document.querySelector("#scroll");
  if (loadCount == 0) {
    loadCount++;
    targetScrollPosition = childWin.innerHeight;
    isnot(targetScrollPosition, 0, "Should scroll somewhere");
    scroller.scrollTo(0, childWin.innerHeight);
    childWin.requestAnimationFrame(() => childWin.requestAnimationFrame(() => {
      childWin.location.reload();
    }));
  } else {
    childWin.requestAnimationFrame(() => childWin.requestAnimationFrame(() => {
      // Verify that the scroll position was retained
      is(scroller.scrollTop, targetScrollPosition, "Should have restored the scroll position");
      childWin.close();
      SimpleTest.finish();
    }));
  }
}

childWin = window.open('file_scroll_position_restore_no_bfcache.html', '_blank');
</script>