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<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
// The worker events races with the window's load event; if the worker events
// arrive first, the harness will detect the error event and fail the test.
setup({ allow_uncaught_exception: true });
var t1 = async_test("Error handler outside the worker should not see the error value");
var t2 = async_test("Error handlers inside a worker should see the error value");
test(function() {
var worker = new Worker("support/ErrorEvent-error.js");
worker.onerror = t1.step_func_done(function(e) {
assert_equals(e.error, null);
var messages = 0;
worker.onmessage = t2.step_func(function(e) {
var data =;
assert_in_array(data.source, ["onerror", "event listener"]);
assert_equals(data.value, "hello");
if (messages == 2) {