From 8de1a762273323608d9d9080c42057d1814070b6 Mon Sep 17 00:00:00 2001
From: Matthew Holt <mholt@users.noreply.github.com>
Date: Mon, 18 Nov 2019 14:22:55 -0700
Subject: [PATCH] reverse_proxy: Fix invalid argument to Intn in RandomChoice
 selection

---
 modules/caddyhttp/reverseproxy/selectionpolicies.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/caddyhttp/reverseproxy/selectionpolicies.go b/modules/caddyhttp/reverseproxy/selectionpolicies.go
index e34dd9b3..a21e44c6 100644
--- a/modules/caddyhttp/reverseproxy/selectionpolicies.go
+++ b/modules/caddyhttp/reverseproxy/selectionpolicies.go
@@ -132,7 +132,7 @@ func (r RandomChoiceSelection) Select(pool UpstreamPool, _ *http.Request) *Upstr
 		if !upstream.Available() {
 			continue
 		}
-		j := weakrand.Intn(i)
+		j := weakrand.Intn(i + 1)
 		if j < k {
 			choices[j] = upstream
 		}