44 lines
1.7 KiB
HTML
44 lines
1.7 KiB
HTML
<!DOCTYPE html>
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<html>
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<title>Test the supported value for <link rel=preload as="..."></title>
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<meta name="timeout" content="long">
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<meta name="variant" content="?as=image&expected=1">
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<meta name="variant" content="?as=fetch&expected=1">
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<meta name="variant" content="?as=font&expected=1">
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<meta name="variant" content="?as=script&expected=1">
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<meta name="variant" content="?as=style&expected=1">
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<meta name="variant" content="?as=track&expected=1">
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<meta name="variant" content="?as=garbagefoobar&expected=0">
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<meta name="variant" content="?as=video&expected=0">
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<meta name="variant" content="?as=audio&expected=0">
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<meta name="variant" content="?as=object&expected=0">
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<meta name="variant" content="?as=iframe&expected=0">
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<meta name="variant" content="?as=worklet&expected=0">
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<meta name="variant" content="?as=json&expected=0">
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<script src="/common/utils.js"></script>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<body>
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<script>
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const params = new URLSearchParams(location.search);
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const as = params.get("as");
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const expected = Number(params.get("expected"));
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promise_test(async t => {
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const link = document.createElement("link");
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link.href = new URL("/common/echo.py?content=nothing", location.href).href;
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link.rel = "preload";
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link.as = as;
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document.head.append(link);
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await new Promise(resolve => {
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t.step_timeout(resolve, 1000);
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link.addEventListener("load", resolve);
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link.addEventListener("error", resolve);
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});
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const resources = performance.getEntriesByName(link.href);
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assert_equals(resources.length, expected);
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});
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</script>
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</body>
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</html>
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