The new version is out ! HTTaP_src.20200416.tgz solves many little bugs, handles MIME type better (default is no "Content-Type:" unless there is an explicit file or link), it obsoletes the version from yesterday.

I even wrote documentation in the example index.html page :-)

Two major things are still missing though :

1. The POST method for the loopback
2. The HTTaP framework

These might be developed in the next few days...