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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Resource Timing in dedicated workers</title>
<link rel="author" title="Google" href="http://www.google.com/" />
<link rel="help" href="http://www.w3.org/TR/resource-timing/"/>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/webperftestharness.js"></script>
<script src="resources/webperftestharnessextension.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script>
const mainDocResource = "/images/red.png?noCacheResourceDedicatedWorker";
// Resources below are requested in the worker thread
// "resources/worker_with_images.js".
const workerResources = [
"/resource-timing/resources/blue.png",
"/resource-timing/resources/resource_timing_test0.png",
];
const {promise: mainDocPromise, resolve: resolveMainDoc} = Promise.withResolvers();
const {promise: workerPromise, resolve: resolveWorker} = Promise.withResolvers();
// Load main document resource
var xhr = new XMLHttpRequest;
xhr.open('get', mainDocResource, true);
xhr.onload = function() {
resolveMainDoc();
}
xhr.send();
const worker = new Worker("resources/worker_with_images.js");
worker.onmessage = function(event) {
resolveWorker();
}
promise_test(async () => {
await Promise.all([
mainDocPromise,
workerPromise,
]);
const context = new PerformanceContext(window.performance);
// The main doc resource appears in the main document.
const mainDocResourceUrl = new URL(mainDocResource, get_host_info().HTTP_ORIGIN).href;
const mainDocEntries = context.getEntriesByName(mainDocResourceUrl);
assert_greater_than(mainDocEntries.length, 0, "main doc resource appears");
// On the other hand, the worker resources don't.
for(resource of workerResources) {
let workerResourceUrl = new URL(resource, get_host_info().HTTP_ORIGIN).href;
let workerEntries = context.getEntriesByName(workerResourceUrl);
assert_equals(workerEntries.length, 0, "worker resources don't appear");
}
}, "Verify that resources requested by dedicated workers don't appear in the main document");
</script>
</head>
<body>
<h1>Description</h1>
<p>This test validates that resources requested by dedicated workers don't appear in the main document.</p>
</body>
</html>
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