Replace javascript with a local file

Question

If I don't have access to the development environment, then I want to have the opportunity to change front-end code on the fly by edit / replace / change javascript files. What I want is to just use the default webpage and just replace a javascript file with a local version.

I've tried adding javascript with this kind of code, with firebug:

$.getScript("mobile.js", function(){
    alert("Running test.js");
});

but how do I replace it with a local file?

I think this is possible with the tool "espresso" (mac users) .. any Windows alternative?

Espresso is just a web IDE. Are you asking if there are HTML/JS/CSS IDEs for Windows? — Strelok
– Strelok, Commented Dec 6, 2011 at 11:42
I want to change the page on the fly. If I do not have access to the development environment, then I have the opportunity to change front-end code on the fly by edit / replace / change javascript file. — Plexus81
– Plexus81, Commented Dec 6, 2011 at 11:48

Quentin · Accepted Answer · 2011-12-06 12:01:39Z

1

I normally use Charles for this sort of thing. If you just want to replace one script with another, you can use the Map Local feature to remap a URL to a local file.

answered Dec 6, 2011 at 12:01

Quentin

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2 Comments

Plexus81 Over a year ago

It works like a charm! Is it possible to add additional new local scripts when loading a webpage?

Quentin Over a year ago

The Rewrite feature lets you run a regular expression over the response body. That could add a new <script> tag.

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