<!doctype html>
<html>
<head>
<title>XMLHttpRequest: setRequestHeader() - headers that differ in case</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="help" href="https://xhr.spec.whatwg.org/#the-setrequestheader()-method" data-tested-assertations="/following::ol/li[6] /following::ol/li[7]" />
</head>
<body>
<div id="log"></div>
<script>
test(function() {
var client = new XMLHttpRequest()
client.open("POST", "resources/inspect-headers.py?filter_value=t1,t2,t3", false)
client.setRequestHeader("x-test", "t1")
client.setRequestHeader("X-TEST", "t2")
client.setRequestHeader("X-teST", "t3")
client.send(null)
assert_equals(client.responseText, "x-test,")
})
</script>
</body>
</html>