843523 - [Progress Events] getOwnPropertyDescriptor() on ProgressEvent.prototype fails

Status: RESOLVED DUPLICATE of bug 560072

(Core :: DOM: Core & HTML, defect)

Description

[Jungkee Song]

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.70 Safari/537.17

Steps to reproduce:

ProgressEvent CR (http://www.w3.org/TR/progress-events/) test
- Test wiki: http://www.w3.org/wiki/Webapps/Interop/ProgressEvents
- Test suite: http://w3c-test.org/webapps/ProgressEvents/tests/
- Test case: http://w3c-test.org/webapps/ProgressEvents/tests/submissions/Ms2ger/interface.html
(3)(4)(5) The ProgressEvent interface 1, 2, 3


Actual results:

Test case failed:
var desc = Object.getOwnPropertyDescriptor(ProgressEvent.prototype, a[1]); 
raises
NS_ERROR_XPC_BAD_OP_ON_WN_PROTO: Illegal operation on WrappedNative prototype object


Expected results:

var desc = Object.getOwnPropertyDescriptor(ProgressEvent.prototype, a[1]); 
returns valid descriptor and subsequent assertions are passed.

Comment 1

[Boris Zbarsky [:bzbarsky]]

Will be fixed by bug 776864.