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21 lines
921 B
HTML
21 lines
921 B
HTML
<!DOCTYPE html>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/common/dispatcher/dispatcher.js"></script>
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<script src="/common/utils.js"></script>
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<script src="resources/utils.sub.js"></script>
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<script>
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promise_test(async t => {
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assert_implements(HTMLScriptElement.supports('speculationrules'), "Speculation Rules not supported");
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let urls = Array(5).fill(getPrefetchUrlList(1)[0]);
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insertSpeculationRules({ prefetch: [{ source: 'list', urls: urls }] });
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await new Promise(resolve => t.step_timeout(resolve, 2000));
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let prefetched_count = (await Promise.all(urls.map(isUrlPrefetched))).reduce(
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(count, was_prefetched) => count + (was_prefetched ? 1 : 0), 0);
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assert_equals(prefetched_count, 1, "url should be prefetched just once.");
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}, "browser should remove duplicate urls from prefetch buffer.");
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</script>
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