blob: 0f8b525576e0d67baa2ca23381c620909d12e539 [file] [log] [blame]
<title>Accept-CH test</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
Apart from this webpage, the test opens two more html web page. One test is run
in this web page, and two in the other web pages.
// This test fetches resources/accept_ch.html. The response headers to
// that webpage contains only the Accept-CH header. These preferences should be
// stored so that the next request to the same origin is sent with the
// requested client hint headers.
// Next, to verify that the origin preferences were persisted by the user
// agent, this test fetches resources/expect_client_hints_headers.html in a new
// window. Fetching of resources/expect_client_hints_headers.html verifies that
// the user agent does send the client hints in the request headers.
// Test is marked as tentative until
// is resolved.
// First, verify the initial state to make sure that the browser does not have
// client hints preferences cached from a previous run of the test.
promise_test(t => {
return fetch("").then(r => {
assert_equals(r.status, 200)
// Verify that the browser did not include client hints in the request
// headers when fetching
assert_false(r.headers.has("device-memory-received"), "device-memory-received");
}, "Precondition: Test that the browser does not have client hints preferences cached");
async_test(t => {
window.addEventListener('message', t.step_func(function(e) {
if(!e.source.location.pathname.includes("expect_client_hints_headers.html")) {
if(typeof != "string")
assert_equals(, "PASS");
}, "Loading of resources/expect_client_hints_headers.html did not finish.");
function acceptChLoaded() {
// Open a new window. Verify that the user agent does not attach the client
// hints.
var verify_win ="resources/expect_client_hints_headers.html");
assert_not_equals(verify_win, null, "Popup windows not allowed?");
// Fetching this webpage should NOT cause user-agent to persist client hint
// preferences for the origin.
var win ="resources/accept_ch.html");
assert_not_equals(win, null, "Popup windows not allowed?");
win.addEventListener('load', acceptChLoaded, false);