unload-bubbles.html

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This WPT test may be referenced by the following Test IDs:
- /page-visibility/unload-bubbles.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>visibilitychange event bubbles when fired on unload</title>

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

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

<div id="log"></div>

<script>

async_test(function(t) {

  var w = window.open("resources/unload-bubbles.html");

  window.onmessage = t.step_func(function(event) {

    if (event.data === "close") {

      w.close();

      return;

    const {state, target, bubbles} = event.data

    assert_equals(state, "hidden");

    assert_equals(target, "#document");

    assert_equals(bubbles, true);

    t.done();

});

});

</script>