Fully parsed Request not available in catchall handler

[gittiver]

          @The-EDev 

Another challenge is whether or not the rest of the request should be parsed in the case of a catchall handler. This however can be left up to the user either through a macro or an app function (since the app already gets passed to every connection as _handler)

At the moment the request body and so on are not being parsed in the case of a catchall handler (this is also mentioned in #669). Is there a workaround to get access to the fully parsed request in a catchall handler? I did not find how to do it just from reading the docs and skimming the code.

(I intend to use the catchall handler for custom routing)

Originally posted by @t-cadet in #493 (comment)

[gittiver]

probably a duplicate of #729