Thank you for your response.
You are not missing the point of my questions.
But I do not really have control over the requests. Or rather, I do, but there are
hundreds of pages containing hundreds of similar (but not equal) links, and it is in the
practice not doable to edit them all..
And my "mangle.pl" URI was an oversimplification for the sake of this post. The real URI
for that first frame is more complicated to generate, and beyond what I can do with
mod_rewrite et al.
But second, I just realised that I cannot do things the way I explain below anyway,
because inside a tag, you cannot put content. You can only use .
So basically, my skeleton ResponseHandler works as I expected and does create the