Test case 9.2.6_4_b has an alert call that get's called when running on IE, it should be removed.
Cannot reproduce as of 2014-Jul-17.
Test has been moved from ch09 to intl402/ch09 and is not exposed via current version of http://test262.ecmascript.org/#
(In reply to comment #1)
> Test has been moved from ch09 to intl402/ch09 and is not exposed via current
> version of http://test262.ecmascript.org/#
The ECMA-402 test suite has its own start page:
Thanks. I was able to reproduce this alert() with IE11 and the current version of the website, test suite date 2013-06-13.
The alert() has been removed from the github source code since Jan 30, 2014 (see https://github.com/tc39/test262/commit/7697770a4c475873185339f6a46506a1a2e0e435#diff-d40e674a44a7907bc55883b5a16f1d82 ) but a new version of the test suite has not been pushed to the webite since then.
Just to be clear, the alert fix wasn't merged until recently I believe. Website hasn't been updated yet.