local http service ?

[rvj]

Not sure if this is the correct newsgroup - apologies if not appropriate

I want to have the functionality of a local http server to execute local
scripts and return a valid document

Has anyone looked at this ...

.... or is there already such functionality available?

I dont want a local http service just the server page functionality

I guess the simplest approach would be to extend the chrome protocol to
recognise  a specific file type for this purpose. for example lsp might
imply a
local server page

lsp would be simply be a form of xul file capable of invoking the relevant
XPCOM
components

        chrome://x//y/z.lsp?param11=a?&param2=b

I would like to be able to use such references in CSS style sheets

    {
             list-style-image:
url("chrome://x//y/z.lsp?param11=a?&param2=b")
    }

 I just want to be able to service a (http) request locally as it would be
remotely.

Ideally I would like to be able to use other protocols such as  file:

     file://x/y/z.lsp?filename=flower&filetype=gif

Any ideas if this might be possible?