third_party/web_platform_tests/workers/WorkerLocation.htm

<!DOCTYPE html>
<title> WorkerLocation object </title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<script>
async_test(function(t) {
  var worker = new Worker('./support/WorkerLocation.js');
  worker.onmessage = t.step_func_done(function(e) {
    var href = window.location.href;
    var ExpectedResult = href.substring(0, href.lastIndexOf('/')) + '/support/WorkerLocation.js';
    assert_equals(e.data.location, ExpectedResult);
  });
});
</script>