| main frame - didStartProvisionalLoadForFrame |
| main frame - didCommitLoadForFrame |
| main frame - didFinishDocumentLoadForFrame |
| main frame - didHandleOnloadEventsForFrame |
| main frame - didFinishLoadForFrame |
| CONSOLE MESSAGE: Origin http://127.0.0.1:8000 is not allowed by Access-Control-Allow-Origin. |
| CONSOLE MESSAGE: XMLHttpRequest cannot load http://localhost:8000/loading/resources/foo.txt due to access control checks. |
| The console message above should report failure to load foo.txt due to cross-origin access, not a network error. |