How To Rewrite Urls Referenced By Javascript Code?

This is a follow-up to my popular and technically challenging HTML injection into someone else's website? question. To recap: I'd like to demo my technology to customers without ac

Solution 1:

Very challenging and interesting task. I would go with first saving the javascript files on my server and reference them from the HTML served. Then I would find the URLs in the files (using a regex or something) and replace it with the wanted value. I know it is not very fast, it is not very dynamic and all, but I believe it would be easier to implement.

Hope I helped!

Solution 2:

Answering my own question.

After much research, I find this technique works best: https://stackoverflow.com/a/23231268/14731

In other words, there doesn't seem to be a general algorithm to rewrite links. Patching them by hand isn't as much work as you'd expect.