| <body> | |
| <script> | |
| if (window.testRunner) | |
| testRunner.dumpAsText(); | |
| var ifm = document.createElement('iframe'); | |
| document.body.appendChild(ifm); | |
| var parentDocumentPrototype = document.__proto__; | |
| var childDocumentPrototype = ifm.contentDocument.__proto__; | |
| if (parentDocumentPrototype === childDocumentPrototype) | |
| document.write("FAIL! The parent and child documents have the same prototype."); | |
| else | |
| document.write("PASS"); | |
| </script> |