fixing host matching in caddy integration

http.go

@@ -109,9 +109,10 @@ func (ch *CaddyHugo) ServeNewContent(w http.ResponseWriter, r *http.Request) (in
 
 func (ch *CaddyHugo) Middleware(c *caddy.Controller) httpserver.Middleware {
 	return func(next httpserver.Handler) httpserver.Handler {
-		host := net.JoinHostPort(ch.Site.Addr.Host, ch.Site.Addr.Port)
+		host := ch.Site.Addr.Host
+		hostport := net.JoinHostPort(ch.Site.Addr.Host, ch.Site.Addr.Port)
 		return httpserver.HandlerFunc(func(w http.ResponseWriter, r *http.Request) (int, error) {
-			if r.Host != host {
+			if r.Host != host && r.Host != hostport {
 				return next.ServeHTTP(w, r)
 			}
 			return ch.ServeHTTPWithNext(next, w, r)
@@ -125,8 +126,9 @@ func (ch *CaddyHugo) Auth(r *http.Request) bool {
 }
 
 func (ch *CaddyHugo) Match(r *http.Request) bool {
-	host := net.JoinHostPort(ch.Site.Addr.Host, ch.Site.Addr.Port)
-	if r.Host != host {
+	host := ch.Site.Addr.Host
+	hostport := net.JoinHostPort(ch.Site.Addr.Host, ch.Site.Addr.Port)
+	if r.Host != host && r.Host != hostport {
 		return false
 	}
 	if strings.HasPrefix(r.URL.Path, "/media/") {

testdir/caddyfile

@@ -7,7 +7,7 @@ localhost:8080 {
 	pprof
 }
 
-localhost:8081 {
+localhost:8081, localhost:8082 {
 	root ./testsite2
 	hugo
 	errors { * }