Fiddler Web Debugging Proxy's “AutoResponder” feature on Linux

Question

There is a website that I like visiting which uses a Javascript that does not work on Linux with Iceweasel. Looking into the source, I have found a simple way to fix it, so what I would like to do is set up something like Fiddler2's AutoResponder feature that will intercept a request for the bad Javascript, returning the fixed Javascript from the local filesystem instead.

What is the simplest way to do this?

Note: The webmaster has refused to use my fixed version of the script.

Answer 1

Have you looked into using GreaseMonkey? Depending on when the JS is loaded (and how it's executed) - that may be the perfect solution.