third_party/web_platform_tests/webmessaging/without-ports/029.html

<!doctype html>
<title>Check that getters don't linger after deletion wrt cloning</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id=log></div>
<script>
async_test(function() {
   var obj = {};
   obj.__defineGetter__( "a", function(){ return 2; } );
   obj.__defineSetter__( "a", function(v){ return; } );
   delete obj.a;
   obj.a = 2;

   postMessage(obj, '*');
   onmessage = this.step_func(function(e) {
     assert_equals(e.data.a, 2);
     this.done();
  });
});
</script>