https://github.com/web-platform-tests/wpt
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Tip revision: c424923d34fe8256abb1f4ca75bd1aef256c5a63 authored by Boris Zbarsky on 13 February 2018, 03:37:24 UTC
Use a null prototype for @@unscopables objects in the DOM.
Tip revision: c424923
postMessage_target_source.htm
<!DOCTYPE html>
<title> postMessage(): target port and source port </title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<script>
async_test(function(t) {
  var channel = new MessageChannel();
  var source = channel.port1;
  var target = channel.port2;
  target.start();
  target.addEventListener("message", t.step_func_done(function(e) {
    assert_equals(e.target, target);
    assert_not_equals(e.target, source);
  }), true);
  source.postMessage("ping");
});
</script>
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