51 lines
1.9 KiB
HTML
51 lines
1.9 KiB
HTML
<!DOCTYPE html>
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<title>Test prerendering</title>
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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="/resources/testdriver.js"></script>
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<script src="/resources/testdriver-vendor.js"></script>
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<script src="resources/utils.js"></script>
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<script src="/common/utils.js"></script>
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<body>
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<script>
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promise_test(async t => {
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assert_implements(
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'supports' in HTMLScriptElement,
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'HTMLScriptElement.supports is not supported');
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assert_implements(
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HTMLScriptElement.supports('speculationrules'),
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'<script type="speculationrules"> is not supported');
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const prerender_ready_key = token();
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const prerender_loaded_key = token();
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const prerender_activated_key = token();
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const url = generateURL('resources/prerender-inner.html',
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[prerender_ready_key, prerender_loaded_key, prerender_activated_key]);
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// TODO: This test expects that the browser always triggers prerendering when
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// SpeculationRules is provided. But SpeculationRules allows browsers not to
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// trigger the speculative resource loading even if SpeculationRules is
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// specified. So we have to use a new WebDriver API that deterministically
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// triggers prerendering.
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// https://github.com/WICG/nav-speculation/blob/main/speculation-rules-testing.md
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const script = document.createElement('script');
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script.type = 'speculationrules';
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script.text = `{"prerender": [{"source": "list", "urls": ["${url}"] }] }`;
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document.head.appendChild(script);
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const ready_result = await nextValueFromServer(prerender_ready_key);
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assert_equals(ready_result, 'ready');
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attachFencedFrame(url);
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const loaded_or_acrivated_result = await Promise.race([
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nextValueFromServer(prerender_loaded_key),
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nextValueFromServer(prerender_activated_key)
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]);
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assert_equals(loaded_or_acrivated_result, 'loaded');
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}, 'Fenced Frame must not load prerendered page.');
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</script>
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</body>
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