Thank you for the fast reply.
Having those external repositories should be a problem because:
epel, uses the repo
"https://rpm.nodesource.com/pub_8.x/el/$releasever/$basearch" and the other ones
works as expected
fedora-27-i386 --> has a nodejs repo, still fails and disables it. It should have used
does not work as expected. this is the particular case where the repo should have been
downloaded but fails like it was offline
fedora-28 and rawhide --> does not have a repo, but hits on the fc/27/ repo
I can, indeed, configure repo for fedora epel 7 and fedora 26 and use fedora own's
version of npm/nodejs for fedora 27 up to rawhide.
Nevertheless, I'm taking your suggestion and have two rpm specs for different