IE8 Script Debugger - Under the Hood

IE8 JScript Debugger - Under the Hood

Visual Studio to Internet Explore... — Tue, 18 Mar 2008 13:13:06 GMT

I have posted about the JScript Debugger Design for IE8 Developers Tools on the JScript Team blog ( here

re: IE8 Script Debugger - Under the Hood

mov__ax — Tue, 18 Mar 2008 18:36:09 GMT

Debugging eval code is problematic, not all the code shows up once selected from the dropdown in the script tab. Also, the selected document in the dropdown does not reflect dynamically loaded documents (document.createElement("script")).

re: IE8 Script Debugger - Under the Hood

Laura T. — Tue, 18 Mar 2008 20:09:43 GMT

I used the script debugger today to debug some DHTML (UI) code. It was a life saver.

Just one thing I did not like was that when the debugger is active on break point I could not switch to the browser to see the UI.

For the rest the debugger is quite good.

re: IE8 Script Debugger - Under the Hood

Web developer from Japan — Mon, 07 Apr 2008 15:13:07 GMT

Looks like it could be very helpful.

My major beef: the script file selection window has an unmanageable number of script files, all with the non-descriptive name, 'eval code'. I figure that this has somehting to do with the design of IE, but is there anyway to put the file names instead of the 'eval code'? Otherwise, if I have 100s of script files, it is next to impossible to find which one I would like to set a breakpoint at.

re: IE8 Script Debugger - Under the Hood

Josh Davidson — Tue, 30 Dec 2008 03:02:58 GMT

Thank goodness. Even when applications I write work in all of the other browsers, IE always has some little problem that I always have great difficulty tracking down because of the lack of a script debugger.

re: IE8 Script Debugger - Under the Hood

Heath Borders — Wed, 18 Feb 2009 22:14:52 GMT

Please provide a way to give an artificial file name to eval code. Javascript packaging frameworks use eval to load javascript files through XHR, and when I view the javascript documents through the debugger, I see 100's of 'eval code' files. Its almost impossible to set breakpoints.

Start it with "debugger"

Steffen Heil — Thu, 26 Mar 2009 16:39:27 GMT

Is it possible to use the internal debugger using the "debugger;" command? When IE hits a "debugger" statement, it opens a window asing me to start Visual Studio. If I deny, it continues and does not use the internal debugger!