Fix handling truncated responses in forward (#3110)
Fix handling truncated responses in forward (#3110)

* Fix handling truncated responses in forward

* Removed error check after proxy.Connect
See https://github.com/coredns/coredns/pull/3110/files#r312942826

johnbelamaric/coredns,yongtang/coredns,johnbelamaric/coredns,miekg/coredns,coredns/coredns,chrisohaver/coredns,miekg/coredns