| Tests that making other frame window a prototype doesn't expose that window properties | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS __proto__ = targetWindow threw exception TypeError: Object.prototype.__proto__ called on null or undefined. | |
| PASS: location === originalLocation should be 'true' and is. | |
| PASS: this.location === originalLocation should be 'true' and is. | |
| PASS: successfullyParsed should be 'true' and is. | |
| TEST COMPLETE | |