chromium/third_party/blink/web_tests/external/wpt/html/browsers/browsing-the-web/navigating-across-documents/abort-document-load-1.html

<!doctype html>
<script>
parent.postMessage(document.readyState, "*");
let f = document.createElement("iframe");
f.onload = function() {
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};
document.documentElement.appendChild(f);

window.addEventListener("load", (event) => {
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window.addEventListener("error", (event) => {
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window.addEventListener("abort", (event) => {
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