event-error.sub.html
<!DOCTYPE html>
<meta charset="utf-8">
<title>XMLHttpRequest Test: event - error</title>
<link rel="author" title="Intel" href="http://www.intel.com">
<meta name="assert" content="Check if event onerror is fired When the request has failed.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<script>
async_test(function (t) {
var client = new XMLHttpRequest();
client.onerror = t.step_func(function(e) {
assert_true(e instanceof ProgressEvent);
assert_equals(e.type, "error");
t.done();
});
client.open("GET", "http://nonexistent-origin.{{host}}:{{ports[http][0]}}");
client.send("null");
}, document.title);
</script>