<!DOCTYPE html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
</body>
<script>
promise_test(async () => {
  performance.clearResourceTimings()

  // Create child iframe.
  const childFrame = document.createElement('iframe')
  childFrame.src = "../resources/child-frame.html"
  document.body.appendChild(childFrame)

  // wait until the child frame's onload event fired
  await new Promise(r => childFrame.addEventListener("load", r));

  const childWindow = childFrame.contentWindow;
  // Detach the child frame
  document.body.removeChild(childFrame);

  const entries = childWindow.performance.getEntries({ includeChildFrames: true });
  const parent_entries = performance.getEntries({ includeChildFrames: true });
}, "GetEntries of a detached parent frame does not crash");
</script>
