The tar1090 install script fixes that issue if for Debian/Raspbian lighttpd installs.
You don’t have a duplicate mod_setenv on Fedora.
It’s a completely different problem.
Why don’t you install nginx and use the tar1090 interface exclusively, it provides an nginx configuration to put into the server section of /etc/nginx/sites-enabled/default …
Some googling in regards to your Fedora issue: How to Disable SELinux Temporarily or Permanently
I’d suspect lighttpd is just not meant for Fedora …