From 7e3fc0c594f7f4fab4289cfe17359a1dd6a15e61 Mon Sep 17 00:00:00 2001
From: Darren Shepherd <darren@rancher.com>
Date: Sat, 14 Mar 2020 10:16:11 -0700
Subject: [PATCH] For web browser based requests do not consider IPs in host
 headers

---
 listener.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/listener.go b/listener.go
index 1c0bb21..5142e61 100644
--- a/listener.go
+++ b/listener.go
@@ -337,6 +337,12 @@ func (l *listener) cacheHandler() http.Handler {
 
 		ip := net.ParseIP(h)
 		if len(ip) > 0 {
+			for _, v := range req.Header["User-Agent"] {
+				if strings.Contains(strings.ToLower(v), "mozilla") {
+					return
+				}
+			}
+
 			l.updateCert(h)
 		}
 	})