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<!DOCTYPE HTML>
<html>
<head>
<title>Accept header</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<script>
SimpleTest.requestCompleteLog();
// All the requests are sent to test_accept_header.sjs which will return
// different content based on the queryString. When the queryString is 'get',
// test_accept_header.sjs returns a JSON object with the latest request and its
// accept header value.
function test_last_request_and_continue(query, expected) {
fetch("test_accept_header.sjs?get").then(r => r.json()).then(json => {
is(json.type, query, "Expected: " + query);
is(json.accept, expected, "Accept header: " + expected);
next();
});
}
function test_iframe() {
let ifr = document.createElement("iframe");
ifr.src = "test_accept_header.sjs?iframe";
ifr.onload = () => {
test_last_request_and_continue("iframe", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
};
document.body.appendChild(ifr);
}
function test_image() {
let i = new Image();
i.src = "test_accept_header.sjs?image";
i.onload = function() {
// Fetch spec says we should have: "image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5"
test_last_request_and_continue("image", "image/webp,*/*");
}
}
function test_style() {
let head = document.getElementsByTagName("head")[0];
let link = document.createElement("link");
link.rel = "stylesheet";
link.type = "text/css";
link.href = "test_accept_header.sjs?style";
link.onload = () => {
test_last_request_and_continue("style", "text/css,*/*;q=0.1");
};
head.appendChild(link);
}
function test_worker() {
let w = new Worker("test_accept_header.sjs?worker");
w.onmessage = function() {
test_last_request_and_continue("worker", "*/*");
}
}
let tests = [
test_iframe,
test_image,
test_style,
test_worker,
];
function next() {
if (tests.length == 0) {
SimpleTest.finish();
return;
}
let test = tests.shift();
test();
}
SimpleTest.waitForExplicitFinish();
SpecialPowers.pushPrefEnv({ "set": [
[ "dom.enable_performance_observer", true ]
]}, next);
</script>
</body>
</html>
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