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<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="/preload/resources/preload_helper.js"></script>
<script>
const dummyContent = '<?xml version="1.0" encoding="utf-8"?>\n<root>Text.me</root>\n';
promise_test(async (t) => {
const url = `resources/dummy.xml?token=${token()}`;
const link = document.createElement('link');
link.rel = 'preload';
link.as = 'fetch';
link.href = url;
link.crossOrigin = 'anonymous';
document.head.appendChild(link);
const xhr = new XMLHttpRequest();
await new Promise((resolve, reject) => {
xhr.onloadend = resolve;
xhr.onloaderror = reject;
xhr.open('GET', url);
xhr.send();
});
verifyNumberOfResourceTimingEntries(url, 1);
assert_equals(xhr.status, 200);
assert_equals(xhr.responseText, dummyContent);
}, 'Make an XHR request immediately after creating link rel=preload.');
promise_test(async (t) => {
const url = `resources/dummy.xml?token=${token()}`;
const link = document.createElement('link');
link.rel = 'preload';
link.as = 'fetch';
link.href = url;
link.crossOrigin = 'anonymous';
await new Promise((resolve, reject) => {
link.addEventListener('load', resolve, {once: true});
link.addEventListener('error', reject, {once: true});
document.head.appendChild(link);
});
const xhr = new XMLHttpRequest();
await new Promise((resolve, reject) => {
xhr.onloadend = resolve;
xhr.onloaderror = reject;
xhr.open('GET', url);
xhr.send();
});
verifyNumberOfResourceTimingEntries(url, 1);
assert_equals(xhr.status, 200);
assert_equals(xhr.responseText, dummyContent);
}, 'Make an XHR request after loading link rel=preload.');
</script>
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