<!DOCTYPE html>
<html>
<head>
<link rel="help" href="https://xhr.spec.whatwg.org/#handler-xhr-onloadstart" data-tested-assertations="/../.." />
<link rel="help" href="https://xhr.spec.whatwg.org/#event-xhr-loadstart" data-tested-assertations="/../.." />
<link rel="help" href="https://xhr.spec.whatwg.org/#the-send()-method" data-tested-assertations="/following-sibling::ol/li[9]/ol/li[2]" />
<link rel="help" href="https://xhr.spec.whatwg.org/#the-response-attribute" data-tested-assertations="/following-sibling::ol/li[1]" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<title>XMLHttpRequest: The send() method: Fire a progress event named loadstart (no response entity body and the state is LOADING)</title>
</head>
<body>
<div id="log"></div>
<script type="text/javascript">
var test = async_test();
test.step(function()
{
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function()
{
test.step(function()
{
if (xhr.readyState == 3)
{
assert_equals(xhr.response, "");
}
else if (xhr.readyState == 4)
{
assert_unreached("loadstart event did not fire in LOADING state!");
}
});
};
xhr.onloadstart = function()
{
test.step(function() { test.done("Test done!"); });
};
xhr.open("POST", "./resources/content.py", true);
xhr.send();
});
</script>
</body>
</html>