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<!DOCTYPE html>
<title>Prefetching double SignedHTTPExchange files must not crash</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="./resources/sxg-util.js"></script>
<body>
<script>
function addPrefetch(url) {
let link = document.createElement('link');
link.rel = 'prefetch';
link.href = url;
document.body.appendChild(link);
}
promise_test(async (t) => {
const sxg1_url =
get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-location.sxg?1';
const sxg2_url =
get_host_info().HTTPS_ORIGIN + '/signed-exchange/resources/sxg/sxg-location.sxg?2';
addPrefetch(sxg1_url);
addPrefetch(sxg2_url);
await new Promise(resolve => {
setInterval(() => {
const entries = performance.getEntriesByType("resource");
let hit_count = 0;
for (let i = 0; i < entries.length; ++i) {
const entry = entries[i];
if (entry.name == sxg1_url || entry.name == sxg2_url) {
if (++hit_count == 2)
resolve();
}
}
}, 100);
});
}, 'Prefetching double SignedHTTPExchange files must not crash');
</script>
</body>
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