We are using Apache 2.0.x with mod_proxy and for a specific URL we get
a 500 error. I check the error and access log files and only see that
there was an internal server error in the access.log file. There is no
info in error.log file that helps me find out what went wrong.

I was wondering how else I can get more info why the request failed. I
am sure the request doesn't get reverse proxied to the destination web
server and something happens inside Apache.

Any help is appreciated.

-Jalil