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Test Info:
<!DOCTYPE html>
<!-- Any copyright is dedicated to the Public Domain.
<html class="reftest-wait">
<script>
function runTest() {
// Both Chrome and Safari do not add the 'open' attribute to details1
// element, but Firefox does add 'open' to details1 since summary2 had been
// moved to details1 before receiving the 'click' event.
var details1 = document.getElementById("details1");
var summary2 = document.getElementById("summary2");
document.body.addEventListener("click", function () {
// Move summary2 into details1 at capture phase, and summary2 will be the
// main summary of details1 at target phase.
details1.insertBefore(summary2, details1.children[0]);
}, true);
summary2.dispatchEvent(new MouseEvent("click"));
document.documentElement.removeAttribute("class");
}
</script>
<body onload="runTest();">
<details id="details1">
<summary id="summary1">Summary 1</summary>
<p>This is the details 1.</p>
</details>
<details>
<summary id="summary2">Summary 2</summary>
<p>This is the details 2.</p>
</details>
</body>
</html>