| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="../../resources/js-test-pre.js"></script> | |
| </head> | |
| <body> | |
| <script> | |
| description('Check that XHR prototype allows defineProperty for built-in attributes.'); | |
| function a() { | |
| this.overrideMimeType("text/plain; charset=x-user-defined"); | |
| }; | |
| var d = XMLHttpRequest.prototype; | |
| Object.defineProperty(d, "responseType", { | |
| set: a | |
| }); | |
| </script> | |
| <script src="../../resources/js-test-post.js"></script> | |
| </body> | |
| </html> |