| PASS Test toString propagation exception. | |
| PASS Test recursive Worker creation. | |
| PASS Test worker creation with no arguments | |
| FAIL Test Worker creation with empty script URL. The string did not match the expected pattern. | |
| PASS Test invalid script URL. | |
| PASS Test not existent script URL. | |
| PASS Test the Worker object defines postMessage() and addEventListener(). | |