server: Make Request.RemoteAddr a string

request.go

@@ -5,7 +5,6 @@ import (
 	"context"
 	"crypto/tls"
 	"io"
-	"net"
 	"net/url"
 )
 
@@ -39,7 +38,7 @@ type Request struct {
 	// sets RemoteAddr to an "IP:port" address before invoking a
 	// handler.
 	// This field is ignored by the Gemini client.
-	RemoteAddr net.Addr
+	RemoteAddr string
 
 	// TLS allows Gemini servers and other software to record
 	// information about the TLS connection on which the request

server.go

@@ -294,7 +294,7 @@ func (srv *Server) respond(conn net.Conn) {
 	}
 
 	// Store remote address
-	req.RemoteAddr = conn.RemoteAddr()
+	req.RemoteAddr = conn.RemoteAddr().String()
 
 	h := srv.Handler
 	if h == nil {