| CONSOLE MESSAGE: MessageEvent received in main world | |
| CONSOLE MESSAGE: detail was {"foo":5,"bar":"hello","targetWorld":"main"} | |
| CONSOLE MESSAGE: MessageEvent received in isolated world | |
| CONSOLE MESSAGE: detail was {"foo":5,"bar":"hello","targetWorld":"isolated"} | |
| Tests that properties of MessageEvents initialized with initMessageEvent() are cloned when accessed in isolated worlds. | |