chiselwright/plack-app-fakeapache1 — pull request #3 by ilmari (2014-01-22 11:11:15+00:00)
Title: Fall back to SERVER_NAME if HTTP_HOST is not set

The Host: header is optional in HTTP/1.0, so fall back to the server
name if not supplied. If neither is supplied, fall back to the empty
string, to avoid undef warnings.