Here's a patch to the access WebResponses when HTTP redirects are followed (instead of the URLs previously proposed)
The requests can be taken from the WebResponses.
This is for testing if a series of URLs were followed to reach the current WebResponse.
Redirect patch
I don't see much value for this feature, since user can already get all requests, by something like http://htmlunit.sourceforge.net/faq.html#HowToModifyRequestOrResponse
What is the added value?