Simple as that: fiddler everywhere does not capture traffic to localhost, 188.8.131.52 AND when you insert your local address, it captures your request only to return that "
[Fiddler] DNS Lookup for "www.192.168.0.18" failed. System.Net.Internals.SocketExceptionFactory+ExtendedSocketException Device not configured
MAC OSX, using safari.
Other address are captured as expected