IE9 platform preview debug tool: How do I show file and line numbers for exceptions/errors

I'm trying to get noVNC working with Internet Explorer 9 (platform preview 7). The developer tools window (F12) is greatly improved over previous version of IE. However, the tools don't report script file name or line number when exceptions are thrown.

Is there a straight forward way to match exceptio开发者_JAVA技巧ns messages in the developer tools to the location in the Javascript where it occurred? (Other than brute force search by adding console messages to the code).

Update:

I discovered that the code causing the exception is within a try/catch block. If I don't catch the exception the behavior is worse: I never seen anything reported at all. But I can tell it has stopped executing based on console.log debug messages before and after (the ones after never fire). So I guess the question still remains, how do I get IE9 dev tools to show the location where console message (especially console.error) came from in the script the same way that Chrome dev tools and firefox firebug?

Which PPB version are you using?

Did you click the "Start Debugging" button on the SCRIPT tab in the F12 tools? If so, it should be breaking into your code at the exact point of the exception.

I solved this by selecting and adding a break-point to an arbitrary entry point in the JavaScript and using step into indiscriminately.