url http://localhost:%(port)d/%(datadir)s/http_invalid_host.html cache key http://localhost:%(port)d/%(datadir)s/http_invalid_host.html real url http://localhost:%(port)d/%(datadir)s/http_invalid_host.html valid url http://localhost] cache key None real url name urllib.parse.urlsplit ValueError info The URL is outside of the domain filter, checked only syntax. error