From ad22606a3da6893475f4d763e3c203c5b1bb2f58 Mon Sep 17 00:00:00 2001
From: Frederic Branczyk <fbranczyk@gmail.com>
Date: Mon, 22 May 2017 14:15:02 +0200
Subject: [PATCH] web: prefix redirect with ExternalURL path

---
 web/web.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/web/web.go b/web/web.go
index 7cac4effce..61398f0645 100644
--- a/web/web.go
+++ b/web/web.go
@@ -23,6 +23,7 @@ import (
 	"net/http"
 	"net/url"
 	"os"
+	"path"
 	"path/filepath"
 	"sort"
 	"strings"
@@ -170,7 +171,7 @@ func New(o *Options) *Handler {
 	instrf := prometheus.InstrumentHandlerFunc
 
 	router.Get("/", func(w http.ResponseWriter, r *http.Request) {
-		router.Redirect(w, r, "/graph", http.StatusFound)
+		router.Redirect(w, r, path.Join(o.ExternalURL.Path, "/graph"), http.StatusFound)
 	})
 
 	router.Get("/alerts", instrf("alerts", h.alerts))