From 303708ea657745c51ec6316959c4ce7aa1188b2a Mon Sep 17 00:00:00 2001
From: Trong Huu Nguyen <trong.huu.nguyen@nav.no>
Date: Mon, 4 Jul 2022 13:21:33 +0200
Subject: [PATCH] router/request: add some clarifying comments

---
 pkg/router/request/request.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/router/request/request.go b/pkg/router/request/request.go
index 26735c5..aa6f5f4 100644
--- a/pkg/router/request/request.go
+++ b/pkg/router/request/request.go
@@ -70,6 +70,7 @@ func parseRedirectParam(r *http.Request) (string, bool) {
 
 	redirectParamURLString := redirectParamURL.String()
 
+	// root path without trailing slash is empty
 	if len(redirectParamURLString) == 0 {
 		redirectParamURLString = "/"
 	}
@@ -103,6 +104,7 @@ func refererPath(r *http.Request) string {
 		return ""
 	}
 
+	// strip scheme and host to avoid cross-domain redirects
 	referer.Scheme = ""
 	referer.Host = ""
 	return referer.String()