Making a surrogate

[access2godzilla]

Say, I want to make a surrogate script which replaces scripts from a certain website.

If my surrogate is like:

Code: Select all

function foo () {
    /* do something */
}

Does foo() have a global scope? Can other code on the page call foo()?

Also, is it possible to make surrogates of entire frameworks (jquery, mootols etc.) in this manner?

[barbaz]

Can other code on the page call foo()?

A quick test with a local server indicates that yes, this is possible. Which makes me think that it should be possible to make surrogates for entire frameworks, but I haven't tried...

[Thrawn]

I suppose in theory you could get a copy of a specific version of eg JQuery, review it to ensure it's safe, and put it in as a surrogate whenever a site wants JQuery. I'm not sure what that would do performance-wise, though. I guess, if you use a file: URL, it could actually be faster.

[barbaz]

I guess, if you use a file: URL

@Thrawn, that feature doesn't work...