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Test Info:

<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
promise_test(async () => {
// Create child iframe.
const childFrame = document.createElement('iframe')
childFrame.src = "../resources/child-frame.html"
// 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
const entries = childWindow.performance.getEntries({ includeChildFrames: true });
const parent_entries = performance.getEntries({ includeChildFrames: true });
}, "GetEntries of a detached parent frame does not crash");