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Test Info: Warnings

<!doctype html>
<title>XMLHttpRequest: send() - "Basic" authenticated request using setRequestHeader() when there is an existing session</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<!-- These spec references do not make much sense simply because the spec doesn't say very much about this.. -->
<link rel="help" href="" data-tested-assertations="following::ol[1]/li[6]" />
<link rel="help" href="" data-tested-assertations="following::code[contains(@title,'http-authorization')]/.." />
<div id="log"></div>
var test = async_test()
test.step(function() {
var client = new XMLHttpRequest(),
urlstart = + location.pathname.replace(/\/[^\/]*$/, '/')
// Initial request: no information is known to the UA about whether resources/auth4/ requires authentication,
// hence it first sends a normal request, gets a 401 response that will not be passed on to the JS, and sends a new
// request with an Authorization header before returning
// (Note: this test will only work as expected if run once per browsing session)
var open_user = token()"GET", location.protocol+'//'+urlstart + "resources/auth4/", false, open_user, 'open-pass')
client.setRequestHeader('X-User', open_user)
// initial request - this will get a 401 response and re-try with HTTP auth
assert_true(client.responseText == (open_user + '\nopen-pass'), 'responseText should contain the right user and password')
assert_equals(client.status, 200)
assert_equals(client.getResponseHeader('x-challenge'), 'DID')
// Another request, this time user,pass is omitted and an Authorization header set explicitly
// Here the URL is known to require authentication (from the request above), and the UA has cached open-user:open-pass credentials
// However, these session credentials should now be overridden by the setRequestHeader() call so the UA should immediately
// send basic Authorization header with credentials user:pass. (This part is perhaps not well specified anywhere)
var user = token();"GET", location.protocol+'//'+urlstart + "resources/auth4/", true)
client.setRequestHeader("x-user", user)
client.setRequestHeader('Authorization', 'Basic ' + btoa(user + ":pass"))
client.onreadystatechange = function () {
if (client.readyState < 4) {return}
test.step( function () {
assert_equals(client.responseText, user + '\npass')
assert_equals(client.status, 200)
assert_equals(client.getResponseHeader('x-challenge'), 'DID-NOT')
} )
<p>Note: this test will only work as expected once per browsing session. Restart browser to re-test.</p>