// META: title=postMessage() with a host object raises DataCloneError var description = "Throw a DataCloneError when a host object (e.g. a DOM node) is used with postMessage."; test(function() { var channel = new MessageChannel(); channel.port1.start(); assert_throws_dom("DATA_CLONE_ERR", function() { channel.port1.postMessage(globalThis); }); }, description);