Debugging remote JavaScript

[Alex]

Hi everyone,

A newly added, not-quite-wanted function of my job is remotely
debugging JavaScript errors on other people's web applications. I have
tried finding a JavaScript debugger that would allow me to do that, but
other the Microsoft Script Debugger, I couldn't find any other.

Are there such programs? Basically, what I'd like to be able to do is
trace commands step by step and view the values of certain variables.

I was unable to figure out how to get Microsoft Script Debugger to
work. I read the documentation and executed it, but I keep getting
"Syntax error" messages whenever I want to see the value of a variable.
Add to that the fact that I am not a developer and I do not know
JavaScript (other than to read it, which is enough for me to figure out
what the problem is) and you see my problem.

I have read about the option of adding message boxes all over the
place, but this would not work out for me either, since I would need to
make changes to this code on the web server, where I don't have access,
and it would be a lot more tedious.

For those skeptical as to why I still expect to be able to debug
problems:
The problems are caused in most cases by the proxy we add on their web
servers, and they are due to values being changed on the fly. I only
need to find out where the code breaks and read the values of the
variables, which gives me the solution ("do not change this variable").

Your help is much appreciated.

 

[Alex]

I forgot to mention that I cannot use Firefox/Netscape or any other
browser (which makes things a lot more complicated, I know). Most of
the applications I deal with only work properly under Internet Explorer.