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<!DOCTYPE html>
<meta charset="utf-8">
<title>Tests Stale While Revalidate is not executed for fetch API</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/client-hints/resources/export.js"></script>
<script src="/common/utils.js"></script>
<script>
function wait25ms(test) {
return new Promise(resolve => {
test.step_timeout(() => {
resolve();
}, 25);
});
}
promise_test(async (test) => {
var request_token = token();
const response = await fetch(`/client-hints/resources/stale-echo-client-hints.py?token=` + request_token);
const response2 = await fetch(`/client-hints/resources/stale-echo-client-hints.py?token=` + request_token);
assert_equals(response.headers.get('Unique-Id'), response2.headers.get('Unique-Id'));
while(true) {
const revalidation_check = await fetch(`/client-hints/resources/stale-echo-client-hints.py?query&token=` + request_token);
if (revalidation_check.headers.get('Count') == '2') {
client_hints_full_list.forEach(header => {
assert_equals(revalidation_check.headers.get(header+"-recieved"), revalidation_check.headers.get(header+"-previous"));
});
break;
}
await wait25ms(test);
}
}, 'Same headers sent for revalidation request');
</script>
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